73651272691 has 2 divisors, whose sum is σ = 73651272692. Its totient is φ = 73651272690.

The previous prime is 73651272683. The next prime is 73651272703. The reversal of 73651272691 is 19627215637.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73651272691 - 2³ = 73651272683 is a prime.

It is not a weakly prime, because it can be changed into another prime (73651272601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36825636345 + 36825636346.

It is an arithmetic number, because the mean of its divisors is an integer number (36825636346).

Almost surely, 2^73651272691 is an apocalyptic number.

73651272691 is a deficient number, since it is larger than the sum of its proper divisors (1).

73651272691 is an equidigital number, since it uses as much as digits as its factorization.

73651272691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 49.

The spelling of 73651272691 in words is "seventy-three billion, six hundred fifty-one million, two hundred seventy-two thousand, six hundred ninety-one".