25070979887 has 8 divisors (see below), whose sum is σ = 25755968016. Its totient is φ = 24386380992.

The previous prime is 25070979859. The next prime is 25070979971. The reversal of 25070979887 is 78897907052.

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

It is a cyclic number.

It is not a de Polignac number, because 25070979887 - 2¹⁸ = 25070717743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25070979827) 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, 35723 + ... + 226755.

It is an arithmetic number, because the mean of its divisors is an integer number (3219496002).

Almost surely, 2^25070979887 is an apocalyptic number.

25070979887 is a deficient number, since it is larger than the sum of its proper divisors (684988129).

25070979887 is a wasteful number, since it uses less digits than its factorization.

25070979887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194617.

The product of its (nonzero) digits is 17781120, while the sum is 62.

The spelling of 25070979887 in words is "twenty-five billion, seventy million, nine hundred seventy-nine thousand, eight hundred eighty-seven".