45187846893 has 60 divisors (see below), whose sum is σ = 81231624540. Its totient is φ = 24931162368.

The previous prime is 45187846877. The next prime is 45187846933. The reversal of 45187846893 is 39864878154.

45187846893 is a `hidden beast` number, since 4 + 5 + 1 + 87 + 8 + 468 + 93 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10858056804 + 34329790089 = 104202^2 + 185283^2 .

It is not a de Polignac number, because 45187846893 - 2⁴ = 45187846877 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45187846893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45187846853) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 81196 + ... + 311397.

It is an arithmetic number, because the mean of its divisors is an integer number (1353860409).

Almost surely, 2^45187846893 is an apocalyptic number.

It is an amenable number.

45187846893 is a deficient number, since it is larger than the sum of its proper divisors (36043777647).

45187846893 is a wasteful number, since it uses less digits than its factorization.

45187846893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392648 (or 392632 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 45187846893 in words is "forty-five billion, one hundred eighty-seven million, eight hundred forty-six thousand, eight hundred ninety-three".