25777381372 has 12 divisors (see below), whose sum is σ = 45387169576. Its totient is φ = 12809618640.

The previous prime is 25777381369. The next prime is 25777381373. The reversal of 25777381372 is 27318377752.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25777381373) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19767279 + ... + 19768582.

Almost surely, 2^25777381372 is an apocalyptic number.

It is an amenable number.

25777381372 is a deficient number, since it is larger than the sum of its proper divisors (19609788204).

25777381372 is a wasteful number, since it uses less digits than its factorization.

25777381372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39536028 (or 39536026 counting only the distinct ones).

The product of its digits is 3457440, while the sum is 52.

The spelling of 25777381372 in words is "twenty-five billion, seven hundred seventy-seven million, three hundred eighty-one thousand, three hundred seventy-two".