25770120806628 has 60 divisors (see below), whose sum is σ = 73492566754992. Its totient is φ = 7809127516080.

The previous prime is 25770120806609. The next prime is 25770120806693. The reversal of 25770120806628 is 82660802107752.

25770120806628 is a `hidden beast` number, since 2 + 5 + 7 + 7 + 0 + 1 + 2 + 0 + 8 + 0 + 6 + 628 = 666.

It is a super-2 number, since 2×25770120806628² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3615333250 + ... + 3615340377.

Almost surely, 2^{25770120806628} is an apocalyptic number.

It is an amenable number.

25770120806628 is an abundant number, since it is smaller than the sum of its proper divisors (47722445948364).

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

25770120806628 is a wasteful number, since it uses less digits than its factorization.

25770120806628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230673654 (or 7230673643 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 25770120806628 in words is "twenty-five trillion, seven hundred seventy billion, one hundred twenty million, eight hundred six thousand, six hundred twenty-eight".