45656671987 has 8 divisors (see below), whose sum is σ = 45785496240. Its totient is φ = 45527892480.

The previous prime is 45656671961. The next prime is 45656672023. The reversal of 45656671987 is 78917665654.

45656671987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 45656671987 - 2⁷ = 45656671859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45656678987) 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, 3902787 + ... + 3914467.

It is an arithmetic number, because the mean of its divisors is an integer number (5723187030).

Almost surely, 2^45656671987 is an apocalyptic number.

45656671987 is a deficient number, since it is larger than the sum of its proper divisors (128824253).

45656671987 is a wasteful number, since it uses less digits than its factorization.

45656671987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22373.

The product of its digits is 76204800, while the sum is 64.

It can be divided in two parts, 4565667 and 1987, that added together give a palindrome (4567654).

The spelling of 45656671987 in words is "forty-five billion, six hundred fifty-six million, six hundred seventy-one thousand, nine hundred eighty-seven".