81497343130 has 16 divisors (see below), whose sum is σ = 167651677440. Its totient is φ = 27941946192.

The previous prime is 81497343127. The next prime is 81497343149. The reversal of 81497343130 is 3134379418.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582123810 + ... + 582123949.

It is an arithmetic number, because the mean of its divisors is an integer number (10478229840).

Almost surely, 2^81497343130 is an apocalyptic number.

81497343130 is an abundant number, since it is smaller than the sum of its proper divisors (86154334310).

81497343130 is a wasteful number, since it uses less digits than its factorization.

81497343130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164247773.

The product of its (nonzero) digits is 217728, while the sum is 43.

The spelling of 81497343130 in words is "eighty-one billion, four hundred ninety-seven million, three hundred forty-three thousand, one hundred thirty".