30872661655 has 8 divisors (see below), whose sum is σ = 40415120784. Its totient is φ = 22452844800.

The previous prime is 30872661647. The next prime is 30872661661. The reversal of 30872661655 is 55616627803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30872661655 - 2³ = 30872661647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30872661599 and 30872661608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280660506 + ... + 280660615.

It is an arithmetic number, because the mean of its divisors is an integer number (5051890098).

Almost surely, 2^30872661655 is an apocalyptic number.

30872661655 is a deficient number, since it is larger than the sum of its proper divisors (9542459129).

30872661655 is a wasteful number, since it uses less digits than its factorization.

30872661655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561321137.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 30872661655 in words is "thirty billion, eight hundred seventy-two million, six hundred sixty-one thousand, six hundred fifty-five".