245791356773 has 2 divisors, whose sum is σ = 245791356774. Its totient is φ = 245791356772.

The previous prime is 245791356739. The next prime is 245791356799. The reversal of 245791356773 is 377653197542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207806516164 + 37984840609 = 455858^2 + 194897^2 .

It is a cyclic number.

It is not a de Polignac number, because 245791356773 - 2¹⁰ = 245791355749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245791356703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122895678386 + 122895678387.

It is an arithmetic number, because the mean of its divisors is an integer number (122895678387).

Almost surely, 2^245791356773 is an apocalyptic number.

It is an amenable number.

245791356773 is a deficient number, since it is larger than the sum of its proper divisors (1).

245791356773 is an equidigital number, since it uses as much as digits as its factorization.

245791356773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33339600, while the sum is 59.

The spelling of 245791356773 in words is "two hundred forty-five billion, seven hundred ninety-one million, three hundred fifty-six thousand, seven hundred seventy-three".