72489820839 has 16 divisors (see below), whose sum is σ = 99340685280. Its totient is φ = 46984734720.

The previous prime is 72489820831. The next prime is 72489820847. The reversal of 72489820839 is 93802898427.

It is an interprime number because it is at equal distance from previous prime (72489820831) and next prime (72489820847).

It is not a de Polignac number, because 72489820839 - 2³ = 72489820831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72489820831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100554 + ... + 393815.

It is an arithmetic number, because the mean of its divisors is an integer number (6208792830).

Almost surely, 2^72489820839 is an apocalyptic number.

72489820839 is a deficient number, since it is larger than the sum of its proper divisors (26850864441).

72489820839 is a wasteful number, since it uses less digits than its factorization.

72489820839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495730.

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 72489820839 in words is "seventy-two billion, four hundred eighty-nine million, eight hundred twenty thousand, eight hundred thirty-nine".