726567961874 has 12 divisors (see below), whose sum is σ = 1150231552974. Its totient is φ = 344163771072.

The previous prime is 726567961853. The next prime is 726567961877. The reversal of 726567961874 is 478169765627.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 370704411025 + 355863550849 = 608855^2 + 596543^2 .

It is not an unprimeable number, because it can be changed into a prime (726567961877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 503162687 + ... + 503164130.

Almost surely, 2^726567961874 is an apocalyptic number.

726567961874 is a deficient number, since it is larger than the sum of its proper divisors (423663591100).

726567961874 is a wasteful number, since it uses less digits than its factorization.

726567961874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006326857 (or 1006326838 counting only the distinct ones).

The product of its digits is 213373440, while the sum is 68.

The spelling of 726567961874 in words is "seven hundred twenty-six billion, five hundred sixty-seven million, nine hundred sixty-one thousand, eight hundred seventy-four".