81692655962 has 16 divisors (see below), whose sum is σ = 123760755360. Its totient is φ = 40439543568.

The previous prime is 81692655943. The next prime is 81692655971. The reversal of 81692655962 is 26955629618.

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 7 ways as a sum of consecutive naturals, for example, 230864 + ... + 465492.

It is an arithmetic number, because the mean of its divisors is an integer number (7735047210).

Almost surely, 2^81692655962 is an apocalyptic number.

81692655962 is a deficient number, since it is larger than the sum of its proper divisors (42068099398).

81692655962 is a wasteful number, since it uses less digits than its factorization.

81692655962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236365.

The product of its digits is 13996800, while the sum is 59.

The spelling of 81692655962 in words is "eighty-one billion, six hundred ninety-two million, six hundred fifty-five thousand, nine hundred sixty-two".