80372145057 has 4 divisors (see below), whose sum is σ = 107162860080. Its totient is φ = 53581430036.

The previous prime is 80372145031. The next prime is 80372145067. The reversal of 80372145057 is 75054127308.

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 80372145057 - 2¹⁴ = 80372128673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80372145067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13395357507 + ... + 13395357512.

It is an arithmetic number, because the mean of its divisors is an integer number (26790715020).

Almost surely, 2^80372145057 is an apocalyptic number.

It is an amenable number.

80372145057 is a deficient number, since it is larger than the sum of its proper divisors (26790715023).

80372145057 is a wasteful number, since it uses less digits than its factorization.

80372145057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26790715022.

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 80372145057 in words is "eighty billion, three hundred seventy-two million, one hundred forty-five thousand, fifty-seven".