72920984849 has 32 divisors (see below), whose sum is σ = 82835913600. Its totient is φ = 63781862400.

The previous prime is 72920984837. The next prime is 72920984861. The reversal of 72920984849 is 94848902927.

It is an interprime number because it is at equal distance from previous prime (72920984837) and next prime (72920984861).

It is a cyclic number.

It is not a de Polignac number, because 72920984849 - 2²⁸ = 72652549393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72920984791 and 72920984800.

It is not an unprimeable number, because it can be changed into a prime (72920984819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3545654 + ... + 3566160.

It is an arithmetic number, because the mean of its divisors is an integer number (2588622300).

Almost surely, 2^72920984849 is an apocalyptic number.

It is an amenable number.

72920984849 is a deficient number, since it is larger than the sum of its proper divisors (9914928751).

72920984849 is a wasteful number, since it uses less digits than its factorization.

72920984849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20753.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 72920984849 in words is "seventy-two billion, nine hundred twenty million, nine hundred eighty-four thousand, eight hundred forty-nine".