26723415572 has 18 divisors (see below), whose sum is σ = 54401239242. Its totient is φ = 11452892304.

The previous prime is 26723415569. The next prime is 26723415577. The reversal of 26723415572 is 27551432762.

It can be written as a sum of positive squares in only one way, i.e., 19264329616 + 7459085956 = 138796^2 + 86366^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26723415577) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68171783 + ... + 68172174.

It is an arithmetic number, because the mean of its divisors is an integer number (3022291069).

Almost surely, 2^26723415572 is an apocalyptic number.

It is an amenable number.

26723415572 is an abundant number, since it is smaller than the sum of its proper divisors (27677823670).

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

26723415572 is a wasteful number, since it uses less digits than its factorization.

26723415572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136343975 (or 136343966 counting only the distinct ones).

The product of its digits is 705600, while the sum is 44.

The spelling of 26723415572 in words is "twenty-six billion, seven hundred twenty-three million, four hundred fifteen thousand, five hundred seventy-two".