26453450772 has 120 divisors (see below), whose sum is σ = 79436294784. Its totient is φ = 7519635648.

The previous prime is 26453450707. The next prime is 26453450791. The reversal of 26453450772 is 27705435462.

26453450772 is a `hidden beast` number, since 2 + 6 + 45 + 34 + 507 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 417193 + ... + 476399.

Almost surely, 2^26453450772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26453450772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39718147392).

26453450772 is an abundant number, since it is smaller than the sum of its proper divisors (52982844012).

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

26453450772 is a wasteful number, since it uses less digits than its factorization.

26453450772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59427 (or 59416 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 45.

The spelling of 26453450772 in words is "twenty-six billion, four hundred fifty-three million, four hundred fifty thousand, seven hundred seventy-two".