26778282612 has 48 divisors (see below), whose sum is σ = 62930409024. Its totient is φ = 8862336000.

The previous prime is 26778282589. The next prime is 26778282631. The reversal of 26778282612 is 21628287762.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1053412 + ... + 1078532.

It is an arithmetic number, because the mean of its divisors is an integer number (1311050188).

Almost surely, 2^26778282612 is an apocalyptic number.

It is an amenable number.

26778282612 is an abundant number, since it is smaller than the sum of its proper divisors (36152126412).

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

26778282612 is a wasteful number, since it uses less digits than its factorization.

26778282612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25760 (or 25758 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 51.

The spelling of 26778282612 in words is "twenty-six billion, seven hundred seventy-eight million, two hundred eighty-two thousand, six hundred twelve".