25823701149 has 8 divisors (see below), whose sum is σ = 34441598400. Its totient is φ = 17210802336.

The previous prime is 25823701121. The next prime is 25823701151. The reversal of 25823701149 is 94110732852.

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

It is not a de Polignac number, because 25823701149 - 2⁵ = 25823701117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25823701149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25823701349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1237537 + ... + 1258230.

It is an arithmetic number, because the mean of its divisors is an integer number (4305199800).

Almost surely, 2^25823701149 is an apocalyptic number.

It is an amenable number.

25823701149 is a deficient number, since it is larger than the sum of its proper divisors (8617897251).

25823701149 is a wasteful number, since it uses less digits than its factorization.

25823701149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499219.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 25823701149 in words is "twenty-five billion, eight hundred twenty-three million, seven hundred one thousand, one hundred forty-nine".