42504221360431 has 4 divisors (see below), whose sum is σ = 42689829314200. Its totient is φ = 42318613406664.

The previous prime is 42504221360407. The next prime is 42504221360521. The reversal of 42504221360431 is 13406312240524.

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

It is a cyclic number.

It is not a de Polignac number, because 42504221360431 - 2³¹ = 42502073876783 is a prime.

It is a super-2 number, since 2×42504221360431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42504221310431) 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, 92803976541 + ... + 92803976998.

It is an arithmetic number, because the mean of its divisors is an integer number (10672457328550).

Almost surely, 2^{42504221360431} is an apocalyptic number.

42504221360431 is a deficient number, since it is larger than the sum of its proper divisors (185607953769).

42504221360431 is a wasteful number, since it uses less digits than its factorization.

42504221360431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185607953768.

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 42504221360431 in words is "forty-two trillion, five hundred four billion, two hundred twenty-one million, three hundred sixty thousand, four hundred thirty-one".