334772778997 has 2 divisors, whose sum is σ = 334772778998. Its totient is φ = 334772778996.

The previous prime is 334772778979. The next prime is 334772779049. The reversal of 334772778997 is 799877277433.

Together with previous prime (334772778979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303585572196 + 31187206801 = 550986^2 + 176599^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-334772778997 is a prime.

It is a super-2 number, since 2×334772778997² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334772778937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167386389498 + 167386389499.

It is an arithmetic number, because the mean of its divisors is an integer number (167386389499).

Almost surely, 2^334772778997 is an apocalyptic number.

It is an amenable number.

334772778997 is a deficient number, since it is larger than the sum of its proper divisors (1).

334772778997 is an equidigital number, since it uses as much as digits as its factorization.

334772778997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 784147392, while the sum is 73.

The spelling of 334772778997 in words is "three hundred thirty-four billion, seven hundred seventy-two million, seven hundred seventy-eight thousand, nine hundred ninety-seven".