797413250621 has 4 divisors (see below), whose sum is σ = 858752731452. Its totient is φ = 736073769792.

The previous prime is 797413250587. The next prime is 797413250663. The reversal of 797413250621 is 126052314797.

797413250621 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.

It can be written as a sum of positive squares in 2 ways, for example, as 204135890596 + 593277360025 = 451814^2 + 770245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-797413250621 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 (797413253621) 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, 30669740396 + ... + 30669740421.

It is an arithmetic number, because the mean of its divisors is an integer number (214688182863).

Almost surely, 2^797413250621 is an apocalyptic number.

It is an amenable number.

797413250621 is a deficient number, since it is larger than the sum of its proper divisors (61339480831).

797413250621 is a wasteful number, since it uses less digits than its factorization.

797413250621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61339480830.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 797413250621 in words is "seven hundred ninety-seven billion, four hundred thirteen million, two hundred fifty thousand, six hundred twenty-one".