7261278726 has 32 divisors (see below), whose sum is σ = 15785860608. Its totient is φ = 2213356320.

The previous prime is 7261278679. The next prime is 7261278757. The reversal of 7261278726 is 6278721627.

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, 426670 + ... + 443361.

It is an arithmetic number, because the mean of its divisors is an integer number (493308144).

Almost surely, 2^7261278726 is an apocalyptic number.

7261278726 is an abundant number, since it is smaller than the sum of its proper divisors (8524581882).

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

7261278726 is a wasteful number, since it uses less digits than its factorization.

7261278726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870156.

The product of its digits is 790272, while the sum is 48.

The square root of 7261278726 is about 85213.1370505745. The cubic root of 7261278726 is about 1936.4414452997.

The spelling of 7261278726 in words is "seven billion, two hundred sixty-one million, two hundred seventy-eight thousand, seven hundred twenty-six".