25698064426 has 32 divisors (see below), whose sum is σ = 39525408000. Its totient is φ = 12526997760.

The previous prime is 25698064417. The next prime is 25698064429. The reversal of 25698064426 is 62446089652.

It is not an unprimeable number, because it can be changed into a prime (25698064429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7449150 + ... + 7452598.

It is an arithmetic number, because the mean of its divisors is an integer number (1235169000).

Almost surely, 2^25698064426 is an apocalyptic number.

25698064426 is a deficient number, since it is larger than the sum of its proper divisors (13827343574).

25698064426 is a wasteful number, since it uses less digits than its factorization.

25698064426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 25698064426 in words is "twenty-five billion, six hundred ninety-eight million, sixty-four thousand, four hundred twenty-six".