724666250261 has 4 divisors (see below), whose sum is σ = 735482164512. Its totient is φ = 713850336012.

The previous prime is 724666250251. The next prime is 724666250299. The reversal of 724666250261 is 162052666427.

724666250261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 724666250261 - 2⁶ = 724666250197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724666250251) 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, 5407957025 + ... + 5407957158.

It is an arithmetic number, because the mean of its divisors is an integer number (183870541128).

Almost surely, 2^724666250261 is an apocalyptic number.

It is an amenable number.

724666250261 is a deficient number, since it is larger than the sum of its proper divisors (10815914251).

724666250261 is a wasteful number, since it uses less digits than its factorization.

724666250261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10815914250.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 724666250261 in words is "seven hundred twenty-four billion, six hundred sixty-six million, two hundred fifty thousand, two hundred sixty-one".