45319340493 has 48 divisors (see below), whose sum is σ = 80581895680. Its totient is φ = 23963198112.

The previous prime is 45319340483. The next prime is 45319340551. The reversal of 45319340493 is 39404391354.

It is a happy number.

45319340493 is a `hidden beast` number, since 4 + 5 + 31 + 93 + 40 + 493 = 666.

45319340493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45319340493 - 2⁴ = 45319340477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45319340453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 388771 + ... + 491712.

Almost surely, 2^45319340493 is an apocalyptic number.

45319340493 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

45319340493 is a deficient number, since it is larger than the sum of its proper divisors (35262555187).

45319340493 is a wasteful number, since it uses less digits than its factorization.

45319340493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880558 (or 880555 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 45319340493 in words is "forty-five billion, three hundred nineteen million, three hundred forty thousand, four hundred ninety-three".