25430263670 has 32 divisors (see below), whose sum is σ = 55067040000. Its totient is φ = 8260055136.

The previous prime is 25430263669. The next prime is 25430263693. The reversal of 25430263670 is 7636203452.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9558920 + ... + 9561579.

It is an arithmetic number, because the mean of its divisors is an integer number (1720845000).

Almost surely, 2^25430263670 is an apocalyptic number.

25430263670 is an abundant number, since it is smaller than the sum of its proper divisors (29636776330).

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

25430263670 is a wasteful number, since it uses less digits than its factorization.

25430263670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19120532.

The product of its (nonzero) digits is 181440, while the sum is 38.

The spelling of 25430263670 in words is "twenty-five billion, four hundred thirty million, two hundred sixty-three thousand, six hundred seventy".