6197911964 has 12 divisors (see below), whose sum is σ = 11196228288. Its totient is φ = 2998989600.

The previous prime is 6197911961. The next prime is 6197911981. The reversal of 6197911964 is 4691197916.

It is a happy number.

It is a super-2 number, since 2×6197911964² = 76828225426988674592, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6197911961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24991457 + ... + 24991704.

It is an arithmetic number, because the mean of its divisors is an integer number (933019024).

Almost surely, 2^6197911964 is an apocalyptic number.

It is an amenable number.

6197911964 is a deficient number, since it is larger than the sum of its proper divisors (4998316324).

6197911964 is a wasteful number, since it uses less digits than its factorization.

6197911964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49983196 (or 49983194 counting only the distinct ones).

The product of its digits is 734832, while the sum is 53.

The square root of 6197911964 is about 78726.8185817260. The cubic root of 6197911964 is about 1836.8842950732.

The spelling of 6197911964 in words is "six billion, one hundred ninety-seven million, nine hundred eleven thousand, nine hundred sixty-four".