528994121400 has 144 divisors (see below), whose sum is σ = 1837798723800. Its totient is φ = 136200771840.

The previous prime is 528994121347. The next prime is 528994121413. The reversal of 528994121400 is 4121499825.

It is a happy number.

528994121400 is a `hidden beast` number, since 5 + 2 + 8 + 99 + 412 + 140 + 0 = 666.

It is a super-3 number, since 3×528994121400³ (a number of 36 digits) contains 333 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 35 ways as a sum of consecutive naturals, for example, 5014794 + ... + 5119193.

Almost surely, 2^528994121400 is an apocalyptic number.

528994121400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

528994121400 is an abundant number, since it is smaller than the sum of its proper divisors (1308804602400).

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

528994121400 is a wasteful number, since it uses less digits than its factorization.

528994121400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10134038 (or 10134026 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 528994121400 in words is "five hundred twenty-eight billion, nine hundred ninety-four million, one hundred twenty-one thousand, four hundred".