6627677961 has 4 divisors (see below), whose sum is σ = 8836903952. Its totient is φ = 4418451972.

The previous prime is 6627677941. The next prime is 6627677977. The reversal of 6627677961 is 1697767266.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6627677961 - 2²¹ = 6625580809 is a prime.

It is a super-2 number, since 2×6627677961² = 87852230309450235042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6627677941) 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, 1104612991 + ... + 1104612996.

It is an arithmetic number, because the mean of its divisors is an integer number (2209225988).

Almost surely, 2^6627677961 is an apocalyptic number.

It is an amenable number.

6627677961 is a deficient number, since it is larger than the sum of its proper divisors (2209225991).

6627677961 is a wasteful number, since it uses less digits than its factorization.

6627677961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209225990.

The product of its digits is 8001504, while the sum is 57.

The square root of 6627677961 is about 81410.5519020723. The cubic root of 6627677961 is about 1878.3959043227.

The spelling of 6627677961 in words is "six billion, six hundred twenty-seven million, six hundred seventy-seven thousand, nine hundred sixty-one".