2625644561000 has 64 divisors (see below), whose sum is σ = 6467377176000. Its totient is φ = 994981089600.

The previous prime is 2625644560991. The next prime is 2625644561047. The reversal of 2625644561000 is 1654465262.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69076910 + ... + 69114909.

It is an arithmetic number, because the mean of its divisors is an integer number (101052768375).

Almost surely, 2^{2625644561000} is an apocalyptic number.

2625644561000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2625644561000 is an abundant number, since it is smaller than the sum of its proper divisors (3841732615000).

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

2625644561000 is a wasteful number, since it uses less digits than its factorization.

2625644561000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138191859 (or 138191845 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 2625644561000 in words is "two trillion, six hundred twenty-five billion, six hundred forty-four million, five hundred sixty-one thousand".