28030252492 has 24 divisors (see below), whose sum is σ = 53526477312. Its totient is φ = 12737648400.

The previous prime is 28030252489. The next prime is 28030252543. The reversal of 28030252492 is 29425203082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87517 + ... + 252427.

It is an arithmetic number, because the mean of its divisors is an integer number (2230269888).

Almost surely, 2^28030252492 is an apocalyptic number.

28030252492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28030252492 is a deficient number, since it is larger than the sum of its proper divisors (25496224820).

28030252492 is a wasteful number, since it uses less digits than its factorization.

28030252492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168789 (or 168787 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 28030252492 in words is "twenty-eight billion, thirty million, two hundred fifty-two thousand, four hundred ninety-two".