73797072387 has 4 divisors (see below), whose sum is σ = 98396096520. Its totient is φ = 49198048256.

The previous prime is 73797072373. The next prime is 73797072397. The reversal of 73797072387 is 78327079737.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73797072387 - 2⁷ = 73797072259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73797072387.

It is not an unprimeable number, because it can be changed into a prime (73797072337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12299512062 + ... + 12299512067.

It is an arithmetic number, because the mean of its divisors is an integer number (24599024130).

Almost surely, 2^73797072387 is an apocalyptic number.

73797072387 is a deficient number, since it is larger than the sum of its proper divisors (24599024133).

73797072387 is a wasteful number, since it uses less digits than its factorization.

73797072387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24599024132.

The product of its (nonzero) digits is 21781872, while the sum is 60.

The spelling of 73797072387 in words is "seventy-three billion, seven hundred ninety-seven million, seventy-two thousand, three hundred eighty-seven".