539460135921 has 24 divisors (see below), whose sum is σ = 836927426784. Its totient is φ = 308184186240.

The previous prime is 539460135919. The next prime is 539460135923. The reversal of 539460135921 is 129531064935.

It is an interprime number because it is at equal distance from previous prime (539460135919) and next prime (539460135923).

It is not a de Polignac number, because 539460135921 - 2¹ = 539460135919 is a prime.

It is the 734480-th Hogben number.

It is not an unprimeable number, because it can be changed into a prime (539460135923) by changing a digit.

It is a nontrivial repunit in base 734479.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111081 + ... + 1044633.

It is an arithmetic number, because the mean of its divisors is an integer number (34871976116).

Almost surely, 2^539460135921 is an apocalyptic number.

It is an amenable number.

539460135921 is a deficient number, since it is larger than the sum of its proper divisors (297467290863).

539460135921 is a wasteful number, since it uses less digits than its factorization.

539460135921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937501 (or 937494 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 48.

The spelling of 539460135921 in words is "five hundred thirty-nine billion, four hundred sixty million, one hundred thirty-five thousand, nine hundred twenty-one".