1290837351420 has 36 divisors (see below), whose sum is σ = 3915539966520. Its totient is φ = 344223293664.

The previous prime is 1290837351413. The next prime is 1290837351491. The reversal of 1290837351420 is 241537380921.

It is a happy number.

1290837351420 is a `hidden beast` number, since 1 + 290 + 8 + 3 + 7 + 351 + 4 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1290837351420² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3585659130 + ... + 3585659489.

It is an arithmetic number, because the mean of its divisors is an integer number (108764999070).

Almost surely, 2^{1290837351420} is an apocalyptic number.

1290837351420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1290837351420 is an abundant number, since it is smaller than the sum of its proper divisors (2624702615100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1290837351420 is a wasteful number, since it uses less digits than its factorization.

1290837351420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171318634 (or 7171318629 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 1290837351420 in words is "one trillion, two hundred ninety billion, eight hundred thirty-seven million, three hundred fifty-one thousand, four hundred twenty".