538424456672531 has 16 divisors (see below), whose sum is σ = 640175746291200. Its totient is φ = 446381047564320.

The previous prime is 538424456672519. The next prime is 538424456672633. The reversal of 538424456672531 is 135276654424835.

It is not a de Polignac number, because 538424456672531 - 2²⁶ = 538424389563667 is a prime.

It is a super-2 number, since 2×538424456672531² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538424456672731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22681951931 + ... + 22681975668.

It is an arithmetic number, because the mean of its divisors is an integer number (40010984143200).

Almost surely, 2^{538424456672531} is an apocalyptic number.

538424456672531 is a deficient number, since it is larger than the sum of its proper divisors (101751289618669).

538424456672531 is a wasteful number, since it uses less digits than its factorization.

538424456672531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45363927706.

The product of its digits is 580608000, while the sum is 65.

The spelling of 538424456672531 in words is "five hundred thirty-eight trillion, four hundred twenty-four billion, four hundred fifty-six million, six hundred seventy-two thousand, five hundred thirty-one".