30877636085 has 32 divisors (see below), whose sum is σ = 38687505120. Its totient is φ = 23638044672.

The previous prime is 30877636081. The next prime is 30877636099. The reversal of 30877636085 is 58063677803.

It can be written as a sum of positive squares in 16 ways, for example, as 450415729 + 30427220356 = 21223^2 + 174434^2 .

It is a cyclic number.

It is not a de Polignac number, because 30877636085 - 2² = 30877636081 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30877636081) 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, 2757017 + ... + 2768193.

It is an arithmetic number, because the mean of its divisors is an integer number (1208984535).

Almost surely, 2^30877636085 is an apocalyptic number.

It is an amenable number.

30877636085 is a deficient number, since it is larger than the sum of its proper divisors (7809869035).

30877636085 is a wasteful number, since it uses less digits than its factorization.

30877636085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11465.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 30877636085 in words is "thirty billion, eight hundred seventy-seven million, six hundred thirty-six thousand, eighty-five".