45647780031 has 24 divisors (see below), whose sum is σ = 75582758784. Its totient is φ = 26005628880.

The previous prime is 45647779973. The next prime is 45647780071. The reversal of 45647780031 is 13008774654.

45647780031 is a `hidden beast` number, since 4 + 564 + 7 + 7 + 80 + 0 + 3 + 1 = 666.

It is not a de Polignac number, because 45647780031 - 2¹¹ = 45647777983 is a prime.

It is a super-2 number, since 2×45647780031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45647780071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1073661 + ... + 1115366.

It is an arithmetic number, because the mean of its divisors is an integer number (3149281616).

Almost surely, 2^45647780031 is an apocalyptic number.

45647780031 is a deficient number, since it is larger than the sum of its proper divisors (29934978753).

45647780031 is a wasteful number, since it uses less digits than its factorization.

45647780031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189371 (or 2189368 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 45647780031 in words is "forty-five billion, six hundred forty-seven million, seven hundred eighty thousand, thirty-one".