72402088891044 has 24 divisors (see below), whose sum is σ = 184296226268448. Its totient is φ = 21940026936640.

The previous prime is 72402088891043. The next prime is 72402088891049. The reversal of 72402088891044 is 44019888020427.

It is a happy number.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72402088891043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274250336577 + ... + 274250336840.

It is an arithmetic number, because the mean of its divisors is an integer number (7679009427852).

Almost surely, 2^{72402088891044} is an apocalyptic number.

It is an amenable number.

72402088891044 is an abundant number, since it is smaller than the sum of its proper divisors (111894137377404).

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

72402088891044 is a wasteful number, since it uses less digits than its factorization.

72402088891044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548500673435 (or 548500673433 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 57.

The spelling of 72402088891044 in words is "seventy-two trillion, four hundred two billion, eighty-eight million, eight hundred ninety-one thousand, forty-four".