726080864434 has 4 divisors (see below), whose sum is σ = 1089121296654. Its totient is φ = 363040432216.

The previous prime is 726080864419. The next prime is 726080864477. The reversal of 726080864434 is 434468080627.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 645768138409 + 80312726025 = 803597^2 + 283395^2 .

It is a super-2 number, since 2×726080864434² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 181520216107 + ... + 181520216110.

Almost surely, 2^726080864434 is an apocalyptic number.

726080864434 is a deficient number, since it is larger than the sum of its proper divisors (363040432220).

726080864434 is a wasteful number, since it uses less digits than its factorization.

726080864434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363040432219.

The product of its (nonzero) digits is 6193152, while the sum is 52.

The spelling of 726080864434 in words is "seven hundred twenty-six billion, eighty million, eight hundred sixty-four thousand, four hundred thirty-four".