397774795063 has 2 divisors, whose sum is σ = 397774795064. Its totient is φ = 397774795062.

The previous prime is 397774795057. The next prime is 397774795079. The reversal of 397774795063 is 360597477793.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-397774795063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 397774795063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (397774795003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198887397531 + 198887397532.

It is an arithmetic number, because the mean of its divisors is an integer number (198887397532).

Almost surely, 2^397774795063 is an apocalyptic number.

397774795063 is a deficient number, since it is larger than the sum of its proper divisors (1).

397774795063 is an equidigital number, since it uses as much as digits as its factorization.

397774795063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210039480, while the sum is 67.

The spelling of 397774795063 in words is "three hundred ninety-seven billion, seven hundred seventy-four million, seven hundred ninety-five thousand, sixty-three".