1625801393888 has 48 divisors (see below), whose sum is σ = 3699154902240. Its totient is φ = 688943118336.

The previous prime is 1625801393873. The next prime is 1625801393897. The reversal of 1625801393888 is 8883931085261.

It is a self number, because there is not a number n which added to its sum of digits gives 1625801393888.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 40755581 + ... + 40795452.

It is an arithmetic number, because the mean of its divisors is an integer number (77065727130).

Almost surely, 2^{1625801393888} is an apocalyptic number.

It is an amenable number.

1625801393888 is an abundant number, since it is smaller than the sum of its proper divisors (2073353508352).

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

1625801393888 is an equidigital number, since it uses as much as digits as its factorization.

1625801393888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81551139 (or 81551131 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 62.

The spelling of 1625801393888 in words is "one trillion, six hundred twenty-five billion, eight hundred one million, three hundred ninety-three thousand, eight hundred eighty-eight".