424720495831 has 4 divisors (see below), whose sum is σ = 439366030200. Its totient is φ = 410074961464.

The previous prime is 424720495783. The next prime is 424720495841. The reversal of 424720495831 is 138594027424.

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 424720495831 - 2²⁹ = 424183624919 is a prime.

It is a super-2 number, since 2×424720495831² (a number of 24 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 (424720495841) 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, 7322767141 + ... + 7322767198.

It is an arithmetic number, because the mean of its divisors is an integer number (109841507550).

Almost surely, 2^424720495831 is an apocalyptic number.

424720495831 is a deficient number, since it is larger than the sum of its proper divisors (14645534369).

424720495831 is a wasteful number, since it uses less digits than its factorization.

424720495831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14645534368.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 424720495831 in words is "four hundred twenty-four billion, seven hundred twenty million, four hundred ninety-five thousand, eight hundred thirty-one".