10028731572 has 72 divisors (see below), whose sum is σ = 25786881120. Its totient is φ = 3285835200.

The previous prime is 10028731571. The next prime is 10028731577. The reversal of 10028731572 is 27513782001.

10028731572 is a `hidden beast` number, since 1 + 0 + 0 + 2 + 87 + 3 + 1 + 572 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10028731571) 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, 495483 + ... + 515325.

Almost surely, 2^10028731572 is an apocalyptic number.

10028731572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10028731572 is an abundant number, since it is smaller than the sum of its proper divisors (15758149548).

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

10028731572 is a wasteful number, since it uses less digits than its factorization.

10028731572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20093 (or 20088 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The spelling of 10028731572 in words is "ten billion, twenty-eight million, seven hundred thirty-one thousand, five hundred seventy-two".