80372065637 has 4 divisors (see below), whose sum is σ = 80412516576. Its totient is φ = 80331614700.

The previous prime is 80372065633. The next prime is 80372065663. The reversal of 80372065637 is 73656027308.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80372065637 - 2² = 80372065633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80372065591 and 80372065600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80372065633) 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, 20222489 + ... + 20226462.

It is an arithmetic number, because the mean of its divisors is an integer number (20103129144).

Almost surely, 2^80372065637 is an apocalyptic number.

It is an amenable number.

80372065637 is a deficient number, since it is larger than the sum of its proper divisors (40450939).

80372065637 is a wasteful number, since it uses less digits than its factorization.

80372065637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40450938.

The product of its (nonzero) digits is 1270080, while the sum is 47.

The spelling of 80372065637 in words is "eighty billion, three hundred seventy-two million, sixty-five thousand, six hundred thirty-seven".