72893631042 has 24 divisors (see below), whose sum is σ = 157941217980. Its totient is φ = 24297105120.

The previous prime is 72893631017. The next prime is 72893631049. The reversal of 72893631042 is 24013639827.

72893631042 is a `hidden beast` number, since 7 + 2 + 8 + 9 + 3 + 631 + 0 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 71380343241 + 1513287801 = 267171^2 + 38901^2 .

It is not an unprimeable number, because it can be changed into a prime (72893631049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 952084 + ... + 1025792.

Almost surely, 2^72893631042 is an apocalyptic number.

72893631042 is an abundant number, since it is smaller than the sum of its proper divisors (85047586938).

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

72893631042 is a wasteful number, since it uses less digits than its factorization.

72893631042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128658 (or 128655 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 72893631042 in words is "seventy-two billion, eight hundred ninety-three million, six hundred thirty-one thousand, forty-two".