25769434990005 has 48 divisors (see below), whose sum is σ = 51064392337920. Its totient is φ = 11776535737344.

The previous prime is 25769434990001. The next prime is 25769434990021. The reversal of 25769434990005 is 50009943496752.

25769434990005 is a `hidden beast` number, since 2 + 57 + 6 + 94 + 3 + 499 + 0 + 0 + 0 + 5 = 666.

It is not a de Polignac number, because 25769434990005 - 2² = 25769434990001 is a prime.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25769434990001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12131932 + ... + 14096901.

It is an arithmetic number, because the mean of its divisors is an integer number (1063841507040).

Almost surely, 2^{25769434990005} is an apocalyptic number.

It is an amenable number.

25769434990005 is a deficient number, since it is larger than the sum of its proper divisors (25294957347915).

25769434990005 is a wasteful number, since it uses less digits than its factorization.

25769434990005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26231970 (or 26231967 counting only the distinct ones).

The product of its (nonzero) digits is 73483200, while the sum is 63.

The spelling of 25769434990005 in words is "twenty-five trillion, seven hundred sixty-nine billion, four hundred thirty-four million, nine hundred ninety thousand, five".