81792887564130 has 64 divisors (see below), whose sum is σ = 200869724233728. Its totient is φ = 21304023249600.

The previous prime is 81792887564053. The next prime is 81792887564131. The reversal of 81792887564130 is 3146578829718.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (81792887564131) 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 31 ways as a sum of consecutive naturals, for example, 284108917 + ... + 284396663.

It is an arithmetic number, because the mean of its divisors is an integer number (3138589441152).

It is a 1-persistent number, because it is pandigital, but 2⋅81792887564130 = 163585775128260 is not.

Almost surely, 2^{81792887564130} is an apocalyptic number.

81792887564130 is an abundant number, since it is smaller than the sum of its proper divisors (119076836669598).

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

81792887564130 is a wasteful number, since it uses less digits than its factorization.

81792887564130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508151.

The product of its (nonzero) digits is 162570240, while the sum is 69.

The spelling of 81792887564130 in words is "eighty-one trillion, seven hundred ninety-two billion, eight hundred eighty-seven million, five hundred sixty-four thousand, one hundred thirty".