642690011590 has 48 divisors (see below), whose sum is σ = 1267460850096. Its totient is φ = 232700268800.

The previous prime is 642690011521. The next prime is 642690011627. The reversal of 642690011590 is 95110096246.

642690011590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5917980 + ... + 6025600.

It is an arithmetic number, because the mean of its divisors is an integer number (26405434377).

Almost surely, 2^642690011590 is an apocalyptic number.

642690011590 is a deficient number, since it is larger than the sum of its proper divisors (624770838506).

642690011590 is a wasteful number, since it uses less digits than its factorization.

642690011590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108105 (or 107872 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 642690011590 in words is "six hundred forty-two billion, six hundred ninety million, eleven thousand, five hundred ninety".