6401195613 has 32 divisors (see below), whose sum is σ = 9708406400. Its totient is φ = 4167158400.

The previous prime is 6401195587. The next prime is 6401195617. The reversal of 6401195613 is 3165911046.

6401195613 is a `hidden beast` number, since 6 + 401 + 195 + 61 + 3 = 666.

It is not a de Polignac number, because 6401195613 - 2⁸ = 6401195357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401195617) 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, 214953 + ... + 242913.

It is an arithmetic number, because the mean of its divisors is an integer number (303387700).

Almost surely, 2^6401195613 is an apocalyptic number.

It is an amenable number.

6401195613 is a deficient number, since it is larger than the sum of its proper divisors (3307210787).

6401195613 is a wasteful number, since it uses less digits than its factorization.

6401195613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28170 (or 28164 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 6401195613 is about 80007.4722322859. The cubic root of 6401195613 is about 1856.7511417453.

The spelling of 6401195613 in words is "six billion, four hundred one million, one hundred ninety-five thousand, six hundred thirteen".