72494571830 has 16 divisors (see below), whose sum is σ = 132952310064. Its totient is φ = 28450699680.

The previous prime is 72494571829. The next prime is 72494571847. The reversal of 72494571830 is 3817549427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68390576 + ... + 68391635.

It is an arithmetic number, because the mean of its divisors is an integer number (8309519379).

Almost surely, 2^72494571830 is an apocalyptic number.

72494571830 is a deficient number, since it is larger than the sum of its proper divisors (60457738234).

72494571830 is a wasteful number, since it uses less digits than its factorization.

72494571830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136782271.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 72494571830 in words is "seventy-two billion, four hundred ninety-four million, five hundred seventy-one thousand, eight hundred thirty".