12757992726 has 16 divisors (see below), whose sum is σ = 25522804224. Its totient is φ = 4251527784.

The previous prime is 12757992647. The next prime is 12757992727. The reversal of 12757992726 is 62729975721.

It is a happy number.

It is a super-2 number, since 2×12757992726² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12757992727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259630 + ... + 304833.

It is an arithmetic number, because the mean of its divisors is an integer number (1595175264).

Almost surely, 2^12757992726 is an apocalyptic number.

12757992726 is an abundant number, since it is smaller than the sum of its proper divisors (12764811498).

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

12757992726 is a wasteful number, since it uses less digits than its factorization.

12757992726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568235.

The product of its digits is 6667920, while the sum is 57.

It can be divided in two parts, 1275 and 7992726, that added together give a triangular number (7994001 = T₃₉₉₈).

The spelling of 12757992726 in words is "twelve billion, seven hundred fifty-seven million, nine hundred ninety-two thousand, seven hundred twenty-six".