25660047135398 has 16 divisors (see below), whose sum is σ = 41608453160736. Its totient is φ = 11798067881280.

The previous prime is 25660047135397. The next prime is 25660047135427. The reversal of 25660047135398 is 89353174006652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25660047135397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1876276223 + ... + 1876289898.

It is an arithmetic number, because the mean of its divisors is an integer number (2600528322546).

It is a 1-persistent number, because it is pandigital, but 2⋅25660047135398 = 51320094270796 is not.

Almost surely, 2^{25660047135398} is an apocalyptic number.

25660047135398 is a deficient number, since it is larger than the sum of its proper divisors (15948406025338).

25660047135398 is a wasteful number, since it uses less digits than its factorization.

25660047135398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752566399.

The product of its (nonzero) digits is 32659200, while the sum is 59.

The spelling of 25660047135398 in words is "twenty-five trillion, six hundred sixty billion, forty-seven million, one hundred thirty-five thousand, three hundred ninety-eight".