45107961921 has 96 divisors (see below), whose sum is σ = 76224844800. Its totient is φ = 25416167040.

The previous prime is 45107961911. The next prime is 45107961971. The reversal of 45107961921 is 12916970154.

45107961921 is a `hidden beast` number, since 4 + 5 + 1 + 0 + 7 + 9 + 619 + 21 = 666.

It is not a de Polignac number, because 45107961921 - 2⁷ = 45107961793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45107961911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 45243195 + ... + 45244191.

It is an arithmetic number, because the mean of its divisors is an integer number (794008800).

Almost surely, 2^45107961921 is an apocalyptic number.

It is an amenable number.

45107961921 is a deficient number, since it is larger than the sum of its proper divisors (31116882879).

45107961921 is a wasteful number, since it uses less digits than its factorization.

45107961921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459 (or 1456 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 45107961921 in words is "forty-five billion, one hundred seven million, nine hundred sixty-one thousand, nine hundred twenty-one".