30886870461 has 32 divisors (see below), whose sum is σ = 44638387200. Its totient is φ = 18925075200.

The previous prime is 30886870457. The next prime is 30886870477. The reversal of 30886870461 is 16407868803.

It is not a de Polignac number, because 30886870461 - 2² = 30886870457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30886870451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420370 + ... + 488348.

It is an arithmetic number, because the mean of its divisors is an integer number (1394949600).

Almost surely, 2^30886870461 is an apocalyptic number.

It is an amenable number.

30886870461 is a deficient number, since it is larger than the sum of its proper divisors (13751516739).

30886870461 is a wasteful number, since it uses less digits than its factorization.

30886870461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68209.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 30886870461 in words is "thirty billion, eight hundred eighty-six million, eight hundred seventy thousand, four hundred sixty-one".