81046490024 has 64 divisors (see below), whose sum is σ = 160928985600. Its totient is φ = 38211897600.

The previous prime is 81046490011. The next prime is 81046490111. The reversal of 81046490024 is 42009464018.

It is a self number, because there is not a number n which added to its sum of digits gives 81046490024.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1593662 + ... + 1643730.

It is an arithmetic number, because the mean of its divisors is an integer number (2514515400).

Almost surely, 2^81046490024 is an apocalyptic number.

It is an amenable number.

81046490024 is a deficient number, since it is larger than the sum of its proper divisors (79882495576).

81046490024 is a wasteful number, since it uses less digits than its factorization.

81046490024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50274 (or 50270 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 81046490024 in words is "eighty-one billion, forty-six million, four hundred ninety thousand, twenty-four".