26619427648 has 28 divisors (see below), whose sum is σ = 57625012512. Its totient is φ = 12099739520.

The previous prime is 26619427631. The next prime is 26619427661. The reversal of 26619427648 is 84672491662.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 18905140 + ... + 18906547.

Almost surely, 2^26619427648 is an apocalyptic number.

It is an amenable number.

26619427648 is an abundant number, since it is smaller than the sum of its proper divisors (31005584864).

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

26619427648 is a wasteful number, since it uses less digits than its factorization.

26619427648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37811710 (or 37811700 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 55.

The spelling of 26619427648 in words is "twenty-six billion, six hundred nineteen million, four hundred twenty-seven thousand, six hundred forty-eight".