28733031492 has 96 divisors (see below), whose sum is σ = 73525294080. Its totient is φ = 8661098880.

The previous prime is 28733031463. The next prime is 28733031493. The reversal of 28733031492 is 29413033782.

It is not an unprimeable number, because it can be changed into a prime (28733031493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37170418 + ... + 37171190.

It is an arithmetic number, because the mean of its divisors is an integer number (765888480).

Almost surely, 2^28733031492 is an apocalyptic number.

28733031492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28733031492 is an abundant number, since it is smaller than the sum of its proper divisors (44792262588).

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

28733031492 is a wasteful number, since it uses less digits than its factorization.

28733031492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 28733031492 in words is "twenty-eight billion, seven hundred thirty-three million, thirty-one thousand, four hundred ninety-two".