25753437868 has 6 divisors (see below), whose sum is σ = 45068516276. Its totient is φ = 12876718932.

The previous prime is 25753437817. The next prime is 25753437869. The reversal of 25753437868 is 86873435752.

It is not an unprimeable number, because it can be changed into a prime (25753437869) 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 as a sum of consecutive naturals, namely, 3219179730 + ... + 3219179737.

Almost surely, 2^25753437868 is an apocalyptic number.

It is an amenable number.

25753437868 is a deficient number, since it is larger than the sum of its proper divisors (19315078408).

25753437868 is a wasteful number, since it uses less digits than its factorization.

25753437868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438359471 (or 6438359469 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 58.

It can be divided in two parts, 2575 and 3437868, that added together give a palindrome (3440443).

The spelling of 25753437868 in words is "twenty-five billion, seven hundred fifty-three million, four hundred thirty-seven thousand, eight hundred sixty-eight".