40497820890 has 16 divisors (see below), whose sum is σ = 97194770208. Its totient is φ = 10799418896.

The previous prime is 40497820877. The next prime is 40497820939. The reversal of 40497820890 is 9802879404.

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, 674963652 + ... + 674963711.

It is an arithmetic number, because the mean of its divisors is an integer number (6074673138).

Almost surely, 2^40497820890 is an apocalyptic number.

40497820890 is an abundant number, since it is smaller than the sum of its proper divisors (56696949318).

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

40497820890 is a wasteful number, since it uses less digits than its factorization.

40497820890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349927373.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 40497820890 in words is "forty billion, four hundred ninety-seven million, eight hundred twenty thousand, eight hundred ninety".