45261315640 has 64 divisors (see below), whose sum is σ = 105482684160. Its totient is φ = 17460572160.

The previous prime is 45261315623. The next prime is 45261315653. The reversal of 45261315640 is 4651316254.

It is a self number, because there is not a number n which added to its sum of digits gives 45261315640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301032 + ... + 425608.

It is an arithmetic number, because the mean of its divisors is an integer number (1648166940).

Almost surely, 2^45261315640 is an apocalyptic number.

45261315640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45261315640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52741342080).

45261315640 is an abundant number, since it is smaller than the sum of its proper divisors (60221368520).

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

45261315640 is a wasteful number, since it uses less digits than its factorization.

45261315640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124912 (or 124908 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 45261315640 in words is "forty-five billion, two hundred sixty-one million, three hundred fifteen thousand, six hundred forty".