126264474440 has 128 divisors (see below), whose sum is σ = 309854160000. Its totient is φ = 46027204608.

The previous prime is 126264474433. The next prime is 126264474451. The reversal of 126264474440 is 44474462621.

It is a junction number, because it is equal to n+sod(n) for n = 126264474391 and 126264474400.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38271911 + ... + 38275209.

It is an arithmetic number, because the mean of its divisors is an integer number (2420735625).

Almost surely, 2^126264474440 is an apocalyptic number.

126264474440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126264474440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154927080000).

126264474440 is an abundant number, since it is smaller than the sum of its proper divisors (183589685560).

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

126264474440 is a wasteful number, since it uses less digits than its factorization.

126264474440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239 (or 4235 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 44.

The spelling of 126264474440 in words is "one hundred twenty-six billion, two hundred sixty-four million, four hundred seventy-four thousand, four hundred forty".