45190919040 has 64 divisors (see below), whose sum is σ = 144046060560. Its totient is φ = 12050911232.

The previous prime is 45190919027. The next prime is 45190919047. The reversal of 45190919040 is 4091909154.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 45190918983 and 45190919001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45190919047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11766549 + ... + 11770388.

Almost surely, 2^45190919040 is an apocalyptic number.

45190919040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45190919040 is an abundant number, since it is smaller than the sum of its proper divisors (98855141520).

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

45190919040 is a wasteful number, since it uses less digits than its factorization.

45190919040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23536959 (or 23536947 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 45190919040 in words is "forty-five billion, one hundred ninety million, nine hundred nineteen thousand, forty".