791849225651 has 16 divisors (see below), whose sum is σ = 887296823808. Its totient is φ = 700316863200.

The previous prime is 791849225647. The next prime is 791849225693. The reversal of 791849225651 is 156522948197.

It is a cyclic number.

It is not a de Polignac number, because 791849225651 - 2² = 791849225647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791849225611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3139046 + ... + 3381908.

It is an arithmetic number, because the mean of its divisors is an integer number (55456051488).

Almost surely, 2^791849225651 is an apocalyptic number.

791849225651 is a deficient number, since it is larger than the sum of its proper divisors (95447598157).

791849225651 is a wasteful number, since it uses less digits than its factorization.

791849225651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250922.

The product of its digits is 10886400, while the sum is 59.

The spelling of 791849225651 in words is "seven hundred ninety-one billion, eight hundred forty-nine million, two hundred twenty-five thousand, six hundred fifty-one".