538714433491 has 16 divisors (see below), whose sum is σ = 619117599744. Its totient is φ = 464338151424.

The previous prime is 538714433459. The next prime is 538714433623. The reversal of 538714433491 is 194334417835.

It is a cyclic number.

It is not a de Polignac number, because 538714433491 - 2⁵ = 538714433459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538714433441) 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, 9568870 + ... + 9625003.

It is an arithmetic number, because the mean of its divisors is an integer number (38694849984).

Almost surely, 2^538714433491 is an apocalyptic number.

538714433491 is a deficient number, since it is larger than the sum of its proper divisors (80403166253).

538714433491 is a wasteful number, since it uses less digits than its factorization.

538714433491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19194030.

The product of its digits is 4354560, while the sum is 52.

The spelling of 538714433491 in words is "five hundred thirty-eight billion, seven hundred fourteen million, four hundred thirty-three thousand, four hundred ninety-one".