794955071557 has 2 divisors, whose sum is σ = 794955071558. Its totient is φ = 794955071556.

The previous prime is 794955071551. The next prime is 794955071569. The reversal of 794955071557 is 755170559497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451434828321 + 343520243236 = 671889^2 + 586106^2 .

It is a cyclic number.

It is not a de Polignac number, because 794955071557 - 2¹¹ = 794955069509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (794955071551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397477535778 + 397477535779.

It is an arithmetic number, because the mean of its divisors is an integer number (397477535779).

Almost surely, 2^794955071557 is an apocalyptic number.

It is an amenable number.

794955071557 is a deficient number, since it is larger than the sum of its proper divisors (1).

794955071557 is an equidigital number, since it uses as much as digits as its factorization.

794955071557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69457500, while the sum is 64.

The spelling of 794955071557 in words is "seven hundred ninety-four billion, nine hundred fifty-five million, seventy-one thousand, five hundred fifty-seven".