45671536681 has 9 divisors (see below), whose sum is σ = 46674211549. Its totient is φ = 44689971244.

The previous prime is 45671536667. The next prime is 45671536693. The reversal of 45671536681 is 18663517654.

The square root of 45671536681 is 213709.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 45671536681 - 2¹³ = 45671528489 is a prime.

It is a super-2 number, since 2×45671536681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45671536601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10042050 + ... + 10046596.

Almost surely, 2^45671536681 is an apocalyptic number.

45671536681 is the 213709-th square number.

45671536681 is the 106855-th centered octagonal number.

It is an amenable number.

45671536681 is a deficient number, since it is larger than the sum of its proper divisors (1002674868).

45671536681 is an frugal number, since it uses more digits than its factorization.

45671536681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9188 (or 4594 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 52.

The spelling of 45671536681 in words is "forty-five billion, six hundred seventy-one million, five hundred thirty-six thousand, six hundred eighty-one".