7958591490 has 64 divisors (see below), whose sum is σ = 19196686080. Its totient is φ = 2111650560.

The previous prime is 7958591471. The next prime is 7958591513. The reversal of 7958591490 is 941958597.

It is a self number, because there is not a number n which added to its sum of digits gives 7958591490.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7124412 + ... + 7125528.

It is an arithmetic number, because the mean of its divisors is an integer number (299948220).

Almost surely, 2^7958591490 is an apocalyptic number.

7958591490 is an abundant number, since it is smaller than the sum of its proper divisors (11238094590).

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

7958591490 is a wasteful number, since it uses less digits than its factorization.

7958591490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107.

The product of its (nonzero) digits is 4082400, while the sum is 57.

The square root of 7958591490 is about 89210.9381746431. The cubic root of 7958591490 is about 1996.5433199568.

The spelling of 7958591490 in words is "seven billion, nine hundred fifty-eight million, five hundred ninety-one thousand, four hundred ninety".