6940814961 has 16 divisors (see below), whose sum is σ = 9933033024. Its totient is φ = 4295361024.

The previous prime is 6940814957. The next prime is 6940814983. The reversal of 6940814961 is 1694180496.

It is not a de Polignac number, because 6940814961 - 2² = 6940814957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6940814961.

It is not an unprimeable number, because it can be changed into a prime (6940814561) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 928431 + ... + 935876.

It is an arithmetic number, because the mean of its divisors is an integer number (620814564).

Almost surely, 2^6940814961 is an apocalyptic number.

It is an amenable number.

6940814961 is a deficient number, since it is larger than the sum of its proper divisors (2992218063).

6940814961 is a wasteful number, since it uses less digits than its factorization.

6940814961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864400.

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 6940814961 is about 83311.5535865224. The cubic root of 6940814961 is about 1907.5246352888.

The spelling of 6940814961 in words is "six billion, nine hundred forty million, eight hundred fourteen thousand, nine hundred sixty-one".