45872371565 has 4 divisors (see below), whose sum is σ = 55046845884. Its totient is φ = 36697897248.

The previous prime is 45872371561. The next prime is 45872371591. The reversal of 45872371565 is 56517327854.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8460688324 + 37411683241 = 91982^2 + 193421^2 .

It is a cyclic number.

It is not a de Polignac number, because 45872371565 - 2² = 45872371561 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45872371561) 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, 4587237152 + ... + 4587237161.

It is an arithmetic number, because the mean of its divisors is an integer number (13761711471).

Almost surely, 2^45872371565 is an apocalyptic number.

It is an amenable number.

45872371565 is a deficient number, since it is larger than the sum of its proper divisors (9174474319).

45872371565 is an equidigital number, since it uses as much as digits as its factorization.

45872371565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9174474318.

The product of its digits is 7056000, while the sum is 53.

The spelling of 45872371565 in words is "forty-five billion, eight hundred seventy-two million, three hundred seventy-one thousand, five hundred sixty-five".