30865700028 has 24 divisors (see below), whose sum is σ = 72040001488. Its totient is φ = 10285704576.

The previous prime is 30865700027. The next prime is 30865700029. The reversal of 30865700028 is 82000756803.

It is an interprime number because it is at equal distance from previous prime (30865700027) and next prime (30865700029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30865700027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312601 + ... + 399312.

Almost surely, 2^30865700028 is an apocalyptic number.

It is an amenable number.

30865700028 is an abundant number, since it is smaller than the sum of its proper divisors (41174301460).

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

30865700028 is a wasteful number, since it uses less digits than its factorization.

30865700028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715533 (or 715531 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 30865700028 in words is "thirty billion, eight hundred sixty-five million, seven hundred thousand, twenty-eight".