42590627504321 has 4 divisors (see below), whose sum is σ = 45866829620052. Its totient is φ = 39314425388592.

The previous prime is 42590627504281. The next prime is 42590627504323. The reversal of 42590627504321 is 12340572609524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8844461873296 + 33746165631025 = 2973964^2 + 5809145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42590627504321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42590627504321.

It is not an unprimeable number, because it can be changed into a prime (42590627504323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638101057846 + ... + 1638101057871.

It is an arithmetic number, because the mean of its divisors is an integer number (11466707405013).

Almost surely, 2^{42590627504321} is an apocalyptic number.

It is an amenable number.

42590627504321 is a deficient number, since it is larger than the sum of its proper divisors (3276202115731).

42590627504321 is a wasteful number, since it uses less digits than its factorization.

42590627504321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276202115730.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 42590627504321 in words is "forty-two trillion, five hundred ninety billion, six hundred twenty-seven million, five hundred four thousand, three hundred twenty-one".