25696869734 has 4 divisors (see below), whose sum is σ = 38545304604. Its totient is φ = 12848434866.

The previous prime is 25696869733. The next prime is 25696869797. The reversal of 25696869734 is 43796869652.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×25696869734² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25696869733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6424217432 + ... + 6424217435.

It is an arithmetic number, because the mean of its divisors is an integer number (9636326151).

Almost surely, 2^25696869734 is an apocalyptic number.

25696869734 is a deficient number, since it is larger than the sum of its proper divisors (12848434870).

25696869734 is a wasteful number, since it uses less digits than its factorization.

25696869734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12848434869.

The product of its digits is 117573120, while the sum is 65.

The spelling of 25696869734 in words is "twenty-five billion, six hundred ninety-six million, eight hundred sixty-nine thousand, seven hundred thirty-four".