1238660470472 has 64 divisors (see below), whose sum is σ = 2608089321600. Its totient is φ = 548415267840.

The previous prime is 1238660470451. The next prime is 1238660470483. The reversal of 1238660470472 is 2740740668321.

It is a super-2 number, since 2×1238660470472² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1238660470472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3055022 + ... + 3436637.

It is an arithmetic number, because the mean of its divisors is an integer number (40751395650).

Almost surely, 2^{1238660470472} is an apocalyptic number.

It is an amenable number.

1238660470472 is an abundant number, since it is smaller than the sum of its proper divisors (1369428851128).

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

1238660470472 is a wasteful number, since it uses less digits than its factorization.

1238660470472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6491766 (or 6491762 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 1238660470472 in words is "one trillion, two hundred thirty-eight billion, six hundred sixty million, four hundred seventy thousand, four hundred seventy-two".