25715649914 has 8 divisors (see below), whose sum is σ = 39817780608. Its totient is φ = 12443056380.

The previous prime is 25715649877. The next prime is 25715649917. The reversal of 25715649914 is 41994651752.

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

It is a super-2 number, since 2×25715649914² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25715649917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207384212 + ... + 207384335.

It is an arithmetic number, because the mean of its divisors is an integer number (4977222576).

Almost surely, 2^25715649914 is an apocalyptic number.

25715649914 is a deficient number, since it is larger than the sum of its proper divisors (14102130694).

25715649914 is a wasteful number, since it uses less digits than its factorization.

25715649914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414768580.

The product of its digits is 2721600, while the sum is 53.

The spelling of 25715649914 in words is "twenty-five billion, seven hundred fifteen million, six hundred forty-nine thousand, nine hundred fourteen".