45507813640 has 32 divisors (see below), whose sum is σ = 102402953280. Its totient is φ = 18201281472.

The previous prime is 45507813623. The next prime is 45507813641. The reversal of 45507813640 is 4631870554.

It is a super-2 number, since 2×45507813640² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (45507813641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383947 + ... + 488293.

It is an arithmetic number, because the mean of its divisors is an integer number (3200092290).

Almost surely, 2^45507813640 is an apocalyptic number.

45507813640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45507813640 is an abundant number, since it is smaller than the sum of its proper divisors (56895139640).

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

45507813640 is a wasteful number, since it uses less digits than its factorization.

45507813640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115261 (or 115257 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 45507813640 in words is "forty-five billion, five hundred seven million, eight hundred thirteen thousand, six hundred forty".