25722463663146 has 16 divisors (see below), whose sum is σ = 52539500248704. Its totient is φ = 8391725733984.

The previous prime is 25722463663139. The next prime is 25722463663147. The reversal of 25722463663146 is 64136636422752.

It is not an unprimeable number, because it can be changed into a prime (25722463663147) 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, 45607204795 + ... + 45607205358.

It is an arithmetic number, because the mean of its divisors is an integer number (3283718765544).

Almost surely, 2^{25722463663146} is an apocalyptic number.

25722463663146 is an abundant number, since it is smaller than the sum of its proper divisors (26817036585558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25722463663146 is a wasteful number, since it uses less digits than its factorization.

25722463663146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91214410205.

The product of its digits is 52254720, while the sum is 57.

The spelling of 25722463663146 in words is "twenty-five trillion, seven hundred twenty-two billion, four hundred sixty-three million, six hundred sixty-three thousand, one hundred forty-six".