727296776641 has 4 divisors (see below), whose sum is σ = 742771176192. Its totient is φ = 711822377092.

The previous prime is 727296776581. The next prime is 727296776669. The reversal of 727296776641 is 146677692727.

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 727296776641 - 2⁷ = 727296776513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (727296776741) 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, 7737199705 + ... + 7737199798.

It is an arithmetic number, because the mean of its divisors is an integer number (185692794048).

Almost surely, 2^727296776641 is an apocalyptic number.

It is an amenable number.

727296776641 is a deficient number, since it is larger than the sum of its proper divisors (15474399551).

727296776641 is a wasteful number, since it uses less digits than its factorization.

727296776641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15474399550.

The product of its digits is 74680704, while the sum is 64.

The spelling of 727296776641 in words is "seven hundred twenty-seven billion, two hundred ninety-six million, seven hundred seventy-six thousand, six hundred forty-one".