72300001515 has 48 divisors (see below), whose sum is σ = 138203518752. Its totient is φ = 32158135296.

The previous prime is 72300001493. The next prime is 72300001531. The reversal of 72300001515 is 51510000327.

It is not a de Polignac number, because 72300001515 - 2⁷ = 72300001387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1302094 + ... + 1356483.

It is an arithmetic number, because the mean of its divisors is an integer number (2879239974).

Almost surely, 2^72300001515 is an apocalyptic number.

72300001515 is a deficient number, since it is larger than the sum of its proper divisors (65903517237).

72300001515 is a wasteful number, since it uses less digits than its factorization.

72300001515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658636 (or 2658629 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The spelling of 72300001515 in words is "seventy-two billion, three hundred million, one thousand, five hundred fifteen".