72852465639 has 8 divisors (see below), whose sum is σ = 97596984832. Its totient is φ = 48338128440.

The previous prime is 72852465593. The next prime is 72852465649. The reversal of 72852465639 is 93656425827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72852465639 - 2¹⁷ = 72852334567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72852465649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57544759 + ... + 57546024.

It is an arithmetic number, because the mean of its divisors is an integer number (12199623104).

Almost surely, 2^72852465639 is an apocalyptic number.

72852465639 is a deficient number, since it is larger than the sum of its proper divisors (24744519193).

72852465639 is a wasteful number, since it uses less digits than its factorization.

72852465639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115090997.

The product of its digits is 21772800, while the sum is 57.

The spelling of 72852465639 in words is "seventy-two billion, eight hundred fifty-two million, four hundred sixty-five thousand, six hundred thirty-nine".