491342569125 has 128 divisors (see below), whose sum is σ = 860159139840. Its totient is φ = 248851008000.

The previous prime is 491342569051. The next prime is 491342569147. The reversal of 491342569125 is 521965243194.

It is not a de Polignac number, because 491342569125 - 2²⁹ = 490805698213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 83572936 + ... + 83578814.

It is an arithmetic number, because the mean of its divisors is an integer number (6719993280).

Almost surely, 2^491342569125 is an apocalyptic number.

It is an amenable number.

491342569125 is a deficient number, since it is larger than the sum of its proper divisors (368816570715).

491342569125 is a wasteful number, since it uses less digits than its factorization.

491342569125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6084 (or 6074 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 51.

The spelling of 491342569125 in words is "four hundred ninety-one billion, three hundred forty-two million, five hundred sixty-nine thousand, one hundred twenty-five".