25673115651 has 32 divisors (see below), whose sum is σ = 35641393152. Its totient is φ = 16420229280.

The previous prime is 25673115649. The next prime is 25673115703. The reversal of 25673115651 is 15651137652.

It is not a de Polignac number, because 25673115651 - 2¹ = 25673115649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25673115631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6713526 + ... + 6717348.

It is an arithmetic number, because the mean of its divisors is an integer number (1113793536).

Almost surely, 2^25673115651 is an apocalyptic number.

25673115651 is a deficient number, since it is larger than the sum of its proper divisors (9968277501).

25673115651 is a wasteful number, since it uses less digits than its factorization.

25673115651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4463.

The product of its digits is 189000, while the sum is 42.

The spelling of 25673115651 in words is "twenty-five billion, six hundred seventy-three million, one hundred fifteen thousand, six hundred fifty-one".