25004869139894 has 32 divisors (see below), whose sum is σ = 43101604761600. Its totient is φ = 10657464140160.

The previous prime is 25004869139893. The next prime is 25004869139941. The reversal of 25004869139894 is 49893196840052.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25004869139891) 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, 2520854 + ... + 7507625.

It is an arithmetic number, because the mean of its divisors is an integer number (1346925148800).

Almost surely, 2^{25004869139894} is an apocalyptic number.

25004869139894 is a deficient number, since it is larger than the sum of its proper divisors (18096735621706).

25004869139894 is a wasteful number, since it uses less digits than its factorization.

25004869139894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10029468.

The product of its (nonzero) digits is 134369280, while the sum is 68.

The spelling of 25004869139894 in words is "twenty-five trillion, four billion, eight hundred sixty-nine million, one hundred thirty-nine thousand, eight hundred ninety-four".