45120104865 has 64 divisors (see below), whose sum is σ = 90523180800. Its totient is φ = 21122035200.

The previous prime is 45120104851. The next prime is 45120104873. The reversal of 45120104865 is 56840102154.

It is a happy number.

45120104865 is a `hidden beast` number, since 45 + 120 + 10 + 486 + 5 = 666.

It is not a de Polignac number, because 45120104865 - 2¹⁶ = 45120039329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 480796 + ... + 566925.

It is an arithmetic number, because the mean of its divisors is an integer number (1414424700).

Almost surely, 2^45120104865 is an apocalyptic number.

45120104865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45120104865 is an abundant number, since it is smaller than the sum of its proper divisors (45403075935).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45120104865 is a wasteful number, since it uses less digits than its factorization.

45120104865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047775 (or 1047769 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The spelling of 45120104865 in words is "forty-five billion, one hundred twenty million, one hundred four thousand, eight hundred sixty-five".