45197494497 has 12 divisors (see below), whose sum is σ = 67536486420. Its totient is φ = 29092639968.

The previous prime is 45197494469. The next prime is 45197494523. The reversal of 45197494497 is 79449479154.

45197494497 is a `hidden beast` number, since 4 + 51 + 9 + 7 + 4 + 94 + 497 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26607808161 + 18589686336 = 163119^2 + 136344^2 .

It is not a de Polignac number, because 45197494497 - 2⁸ = 45197494241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45197494417) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 86584978 + ... + 86585499.

It is an arithmetic number, because the mean of its divisors is an integer number (5628040535).

Almost surely, 2^45197494497 is an apocalyptic number.

It is an amenable number.

45197494497 is a deficient number, since it is larger than the sum of its proper divisors (22338991923).

45197494497 is a wasteful number, since it uses less digits than its factorization.

45197494497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173170512 (or 173170509 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 45197494497 in words is "forty-five billion, one hundred ninety-seven million, four hundred ninety-four thousand, four hundred ninety-seven".