1252012924872 has 96 divisors (see below), whose sum is σ = 3403595665080. Its totient is φ = 415773388800.

The previous prime is 1252012924871. The next prime is 1252012924879. The reversal of 1252012924872 is 2784292102521.

1252012924872 is a `hidden beast` number, since 1 + 2 + 520 + 1 + 29 + 24 + 87 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1113856495236 + 138156429636 = 1055394^2 + 371694^2 .

It is not an unprimeable number, because it can be changed into a prime (1252012924871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28367622 + ... + 28411722.

Almost surely, 2^{1252012924872} is an apocalyptic number.

1252012924872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1252012924872 is an abundant number, since it is smaller than the sum of its proper divisors (2151582740208).

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

1252012924872 is a wasteful number, since it uses less digits than its factorization.

1252012924872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45583 (or 45576 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 1252012924872 in words is "one trillion, two hundred fifty-two billion, twelve million, nine hundred twenty-four thousand, eight hundred seventy-two".