45459963639 has 40 divisors (see below), whose sum is σ = 69496930800. Its totient is φ = 29603193984.

The previous prime is 45459963607. The next prime is 45459963649. The reversal of 45459963639 is 93636995454.

45459963639 is a `hidden beast` number, since 4 + 5 + 4 + 599 + 6 + 3 + 6 + 39 = 666.

It is not a de Polignac number, because 45459963639 - 2⁵ = 45459963607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45459963649) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 951187 + ... + 997835.

It is an arithmetic number, because the mean of its divisors is an integer number (1737423270).

Almost surely, 2^45459963639 is an apocalyptic number.

45459963639 is a deficient number, since it is larger than the sum of its proper divisors (24036967161).

45459963639 is a wasteful number, since it uses less digits than its factorization.

45459963639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46941 (or 46932 counting only the distinct ones).

The product of its digits is 94478400, while the sum is 63.

The spelling of 45459963639 in words is "forty-five billion, four hundred fifty-nine million, nine hundred sixty-three thousand, six hundred thirty-nine".