45181397117 has 8 divisors (see below), whose sum is σ = 46472741592. Its totient is φ = 43893748800.

The previous prime is 45181397089. The next prime is 45181397143. The reversal of 45181397117 is 71179318154.

It can be written as a sum of positive squares in 4 ways, for example, as 15273499396 + 29907897721 = 123586^2 + 172939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45181397117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45181397167) 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, 899234 + ... + 948147.

It is an arithmetic number, because the mean of its divisors is an integer number (5809092699).

Almost surely, 2^45181397117 is an apocalyptic number.

It is an amenable number.

45181397117 is a deficient number, since it is larger than the sum of its proper divisors (1291344475).

45181397117 is a wasteful number, since it uses less digits than its factorization.

45181397117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848079.

The product of its digits is 211680, while the sum is 47.

The spelling of 45181397117 in words is "forty-five billion, one hundred eighty-one million, three hundred ninety-seven thousand, one hundred seventeen".