25421280814 has 8 divisors (see below), whose sum is σ = 38365859880. Its totient is φ = 12632660856.

The previous prime is 25421280757. The next prime is 25421280823. The reversal of 25421280814 is 41808212452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38989369 + ... + 38990020.

It is an arithmetic number, because the mean of its divisors is an integer number (4795732485).

Almost surely, 2^25421280814 is an apocalyptic number.

25421280814 is a deficient number, since it is larger than the sum of its proper divisors (12944579066).

25421280814 is a wasteful number, since it uses less digits than its factorization.

25421280814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77979554.

The product of its (nonzero) digits is 40960, while the sum is 37.

The spelling of 25421280814 in words is "twenty-five billion, four hundred twenty-one million, two hundred eighty thousand, eight hundred fourteen".