72782336830515 has 32 divisors (see below), whose sum is σ = 125411625271296. Its totient is φ = 35830715637120.

The previous prime is 72782336830493. The next prime is 72782336830537. The reversal of 72782336830515 is 51503863328727.

It is an interprime number because it is at equal distance from previous prime (72782336830493) and next prime (72782336830537).

It is not a de Polignac number, because 72782336830515 - 2¹⁰ = 72782336829491 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8954830 + ... + 15025100.

It is an arithmetic number, because the mean of its divisors is an integer number (3919113289728).

Almost surely, 2^{72782336830515} is an apocalyptic number.

72782336830515 is a deficient number, since it is larger than the sum of its proper divisors (52629288440781).

72782336830515 is a wasteful number, since it uses less digits than its factorization.

72782336830515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6131779.

The product of its (nonzero) digits is 50803200, while the sum is 60.

The spelling of 72782336830515 in words is "seventy-two trillion, seven hundred eighty-two billion, three hundred thirty-six million, eight hundred thirty thousand, five hundred fifteen".