726521261633276 has 12 divisors (see below), whose sum is σ = 1287506033274720. Its totient is φ = 358662394983360.

The previous prime is 726521261633273. The next prime is 726521261633287. The reversal of 726521261633276 is 672336162125627.

It is a super-2 number, since 2×726521261633276² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726521261633273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1149558957965 + ... + 1149558958596.

It is an arithmetic number, because the mean of its divisors is an integer number (107292169439560).

Almost surely, 2^{726521261633276} is an apocalyptic number.

It is an amenable number.

726521261633276 is a deficient number, since it is larger than the sum of its proper divisors (560984771641444).

726521261633276 is a wasteful number, since it uses less digits than its factorization.

726521261633276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299117916644 (or 2299117916642 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 59.

The spelling of 726521261633276 in words is "seven hundred twenty-six trillion, five hundred twenty-one billion, two hundred sixty-one million, six hundred thirty-three thousand, two hundred seventy-six".