81736810962 has 16 divisors (see below), whose sum is σ = 164109709152. Its totient is φ = 27139589120.

The previous prime is 81736810957. The next prime is 81736810979. The reversal of 81736810962 is 26901863718.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26501964 + ... + 26505047.

It is an arithmetic number, because the mean of its divisors is an integer number (10256856822).

Almost surely, 2^81736810962 is an apocalyptic number.

81736810962 is an abundant number, since it is smaller than the sum of its proper divisors (82372898190).

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

81736810962 is a wasteful number, since it uses less digits than its factorization.

81736810962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53007273.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 81736810962 in words is "eighty-one billion, seven hundred thirty-six million, eight hundred ten thousand, nine hundred sixty-two".