73407315987 has 32 divisors (see below), whose sum is σ = 115184160000. Its totient is φ = 46045321344.

The previous prime is 73407315979. The next prime is 73407316007. The reversal of 73407315987 is 78951370437.

73407315987 is a `hidden beast` number, since 7 + 3 + 40 + 7 + 3 + 1 + 598 + 7 = 666.

It is not a de Polignac number, because 73407315987 - 2³ = 73407315979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73407315937) 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, 1583188 + ... + 1628894.

It is an arithmetic number, because the mean of its divisors is an integer number (3599505000).

Almost surely, 2^73407315987 is an apocalyptic number.

73407315987 is a deficient number, since it is larger than the sum of its proper divisors (41776844013).

73407315987 is a wasteful number, since it uses less digits than its factorization.

73407315987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49232 (or 49226 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The spelling of 73407315987 in words is "seventy-three billion, four hundred seven million, three hundred fifteen thousand, nine hundred eighty-seven".