6131564641 has 8 divisors (see below), whose sum is σ = 6774516864. Its totient is φ = 5519976000.

The previous prime is 6131564639. The next prime is 6131564669. The reversal of 6131564641 is 1464651316.

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

It is a cyclic number.

It is not a de Polignac number, because 6131564641 - 2¹ = 6131564639 is a prime.

It is a super-2 number, since 2×6131564641² = 75192169893522917762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6131564641.

It is not an unprimeable number, because it can be changed into a prime (6131564611) 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, 7840485 + ... + 7841266.

It is an arithmetic number, because the mean of its divisors is an integer number (846814608).

Almost surely, 2^6131564641 is an apocalyptic number.

It is an amenable number.

6131564641 is a deficient number, since it is larger than the sum of its proper divisors (642952223).

6131564641 is a wasteful number, since it uses less digits than its factorization.

6131564641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15681791.

The product of its digits is 51840, while the sum is 37.

The square root of 6131564641 is about 78304.3079338551. The cubic root of 6131564641 is about 1830.3062822579.

The spelling of 6131564641 in words is "six billion, one hundred thirty-one million, five hundred sixty-four thousand, six hundred forty-one".