25786700020 has 12 divisors (see below), whose sum is σ = 54152070084. Its totient is φ = 10314680000.

The previous prime is 25786700011. The next prime is 25786700021. The reversal of 25786700020 is 2000768752.

It can be written as a sum of positive squares in 2 ways, for example, as 17444069776 + 8342630244 = 132076^2 + 91338^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25786700021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644667481 + ... + 644667520.

It is an arithmetic number, because the mean of its divisors is an integer number (4512672507).

Almost surely, 2^25786700020 is an apocalyptic number.

25786700020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25786700020 is an abundant number, since it is smaller than the sum of its proper divisors (28365370064).

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

25786700020 is a wasteful number, since it uses less digits than its factorization.

25786700020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289335010 (or 1289335008 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 25786700020 in words is "twenty-five billion, seven hundred eighty-six million, seven hundred thousand, twenty".