25787742763564 has 12 divisors (see below), whose sum is σ = 45542573230000. Its totient is φ = 12775578983568.

The previous prime is 25787742763561. The next prime is 25787742763579. The reversal of 25787742763564 is 46536724778752.

It is not an unprimeable number, because it can be changed into a prime (25787742763561) 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, 29573099064 + ... + 29573099935.

Almost surely, 2^{25787742763564} is an apocalyptic number.

It is an amenable number.

25787742763564 is a deficient number, since it is larger than the sum of its proper divisors (19754830466436).

25787742763564 is a wasteful number, since it uses less digits than its factorization.

25787742763564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59146199112 (or 59146199110 counting only the distinct ones).

The product of its digits is 3319142400, while the sum is 73.

The spelling of 25787742763564 in words is "twenty-five trillion, seven hundred eighty-seven billion, seven hundred forty-two million, seven hundred sixty-three thousand, five hundred sixty-four".