72498859517 has 16 divisors (see below), whose sum is σ = 85758341760. Its totient is φ = 59967273408.

The previous prime is 72498859513. The next prime is 72498859529. The reversal of 72498859517 is 71595889427.

It is not a de Polignac number, because 72498859517 - 2² = 72498859513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72498859513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293483 + ... + 480759.

It is an arithmetic number, because the mean of its divisors is an integer number (5359896360).

Almost surely, 2^72498859517 is an apocalyptic number.

It is an amenable number.

72498859517 is a deficient number, since it is larger than the sum of its proper divisors (13259482243).

72498859517 is a wasteful number, since it uses less digits than its factorization.

72498859517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189220.

The product of its digits is 50803200, while the sum is 65.

The spelling of 72498859517 in words is "seventy-two billion, four hundred ninety-eight million, eight hundred fifty-nine thousand, five hundred seventeen".