28290427612 has 6 divisors (see below), whose sum is σ = 49508248328. Its totient is φ = 14145213804.

The previous prime is 28290427579. The next prime is 28290427637. The reversal of 28290427612 is 21672409282.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3536303448 + ... + 3536303455.

Almost surely, 2^28290427612 is an apocalyptic number.

It is an amenable number.

28290427612 is a deficient number, since it is larger than the sum of its proper divisors (21217820716).

28290427612 is a wasteful number, since it uses less digits than its factorization.

28290427612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072606907 (or 7072606905 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 28290427612 in words is "twenty-eight billion, two hundred ninety million, four hundred twenty-seven thousand, six hundred twelve".