42391456590 has 64 divisors (see below), whose sum is σ = 116291427840. Its totient is φ = 9687999360.

The previous prime is 42391456579. The next prime is 42391456621. The reversal of 42391456590 is 9565419324.

It is a congruent number.

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, 1982476 + ... + 2003744.

It is an arithmetic number, because the mean of its divisors is an integer number (1817053560).

Almost surely, 2^42391456590 is an apocalyptic number.

42391456590 is an abundant number, since it is smaller than the sum of its proper divisors (73899971250).

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

42391456590 is a wasteful number, since it uses less digits than its factorization.

42391456590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30777.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 42391456590 in words is "forty-two billion, three hundred ninety-one million, four hundred fifty-six thousand, five hundred ninety".