2645631132570 has 48 divisors (see below), whose sum is σ = 6939513900072. Its totient is φ = 699258255360.

The previous prime is 2645631132569. The next prime is 2645631132601. The reversal of 2645631132570 is 752311365462.

2645631132570 is a `hidden beast` number, since 2 + 6 + 4 + 5 + 6 + 311 + 325 + 7 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2060686089081 + 584945043489 = 1435509^2 + 764817^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130060191 + ... + 130080530.

Almost surely, 2^{2645631132570} is an apocalyptic number.

2645631132570 is an abundant number, since it is smaller than the sum of its proper divisors (4293882767502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2645631132570 is a wasteful number, since it uses less digits than its factorization.

2645631132570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260140847 (or 260140844 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 2645631132570 in words is "two trillion, six hundred forty-five billion, six hundred thirty-one million, one hundred thirty-two thousand, five hundred seventy".