397765567793 has 16 divisors (see below), whose sum is σ = 441509009472. Its totient is φ = 355298568000.

The previous prime is 397765567721. The next prime is 397765567813.

397765567793 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 397765567793 - 2¹⁰ = 397765566769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 397765567793.

It is not an unprimeable number, because it can be changed into a prime (397765567193) 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, 316430 + ... + 946392.

It is an arithmetic number, because the mean of its divisors is an integer number (27594313092).

Almost surely, 2^397765567793 is an apocalyptic number.

It is an amenable number.

397765567793 is a deficient number, since it is larger than the sum of its proper divisors (43743441679).

397765567793 is a wasteful number, since it uses less digits than its factorization.

397765567793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630976.

The product of its digits is 1575296100, while the sum is 74.

The spelling of 397765567793 in words is "three hundred ninety-seven billion, seven hundred sixty-five million, five hundred sixty-seven thousand, seven hundred ninety-three".