505791622797 has 16 divisors (see below), whose sum is σ = 690336440640. Its totient is φ = 329226613632.

The previous prime is 505791622793. The next prime is 505791622811. The reversal of 505791622797 is 797226197505.

It is a happy number.

It is not a de Polignac number, because 505791622797 - 2² = 505791622793 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505791622797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505791622793) 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, 411522 + ... + 1086707.

It is an arithmetic number, because the mean of its divisors is an integer number (43146027540).

Almost surely, 2^505791622797 is an apocalyptic number.

It is an amenable number.

505791622797 is a deficient number, since it is larger than the sum of its proper divisors (184544817843).

505791622797 is a wasteful number, since it uses less digits than its factorization.

505791622797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500892.

The product of its (nonzero) digits is 16669800, while the sum is 60.

The spelling of 505791622797 in words is "five hundred five billion, seven hundred ninety-one million, six hundred twenty-two thousand, seven hundred ninety-seven".