80645405313 has 96 divisors (see below), whose sum is σ = 124528295808. Its totient is φ = 46336942080.

The previous prime is 80645405303. The next prime is 80645405317. The reversal of 80645405313 is 31350454608.

It is not a de Polignac number, because 80645405313 - 2¹⁰ = 80645404289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80645405317) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 137385406 + ... + 137385992.

It is an arithmetic number, because the mean of its divisors is an integer number (1297169748).

Almost surely, 2^80645405313 is an apocalyptic number.

It is an amenable number.

80645405313 is a deficient number, since it is larger than the sum of its proper divisors (43882890495).

80645405313 is a wasteful number, since it uses less digits than its factorization.

80645405313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 884 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 80645405313 in words is "eighty billion, six hundred forty-five million, four hundred five thousand, three hundred thirteen".