26720551312 has 80 divisors (see below), whose sum is σ = 67466431872. Its totient is φ = 9948948480.

The previous prime is 26720551289. The next prime is 26720551349. The reversal of 26720551312 is 21315502762.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 515014 + ... + 564517.

Almost surely, 2^26720551312 is an apocalyptic number.

It is an amenable number.

26720551312 is an abundant number, since it is smaller than the sum of its proper divisors (40745880560).

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

26720551312 is a wasteful number, since it uses less digits than its factorization.

26720551312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079576 (or 1079570 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The spelling of 26720551312 in words is "twenty-six billion, seven hundred twenty million, five hundred fifty-one thousand, three hundred twelve".