6992561994 has 32 divisors (see below), whose sum is σ = 15668842176. Its totient is φ = 2061688320.

The previous prime is 6992561951. The next prime is 6992562007. The reversal of 6992561994 is 4991652996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1429287 + ... + 1434170.

It is an arithmetic number, because the mean of its divisors is an integer number (489651318).

Almost surely, 2^6992561994 is an apocalyptic number.

6992561994 is an abundant number, since it is smaller than the sum of its proper divisors (8676280182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6992561994 is a wasteful number, since it uses less digits than its factorization.

6992561994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863510.

The product of its digits is 9447840, while the sum is 60.

The square root of 6992561994 is about 83621.5402513013. The cubic root of 6992561994 is about 1912.2534000982.

The spelling of 6992561994 in words is "six billion, nine hundred ninety-two million, five hundred sixty-one thousand, nine hundred ninety-four".