26425378992 has 20 divisors (see below), whose sum is σ = 68265562520. Its totient is φ = 8808459648.

The previous prime is 26425378981. The next prime is 26425379009. The reversal of 26425378992 is 29987352462.

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, 275264317 + ... + 275264412.

It is an arithmetic number, because the mean of its divisors is an integer number (3413278126).

Almost surely, 2^26425378992 is an apocalyptic number.

It is an amenable number.

26425378992 is an abundant number, since it is smaller than the sum of its proper divisors (41840183528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26425378992 is a wasteful number, since it uses less digits than its factorization.

26425378992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550528740 (or 550528734 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 26425378992 in words is "twenty-six billion, four hundred twenty-five million, three hundred seventy-eight thousand, nine hundred ninety-two".