393764145416 has 16 divisors (see below), whose sum is σ = 738327037740. Its totient is φ = 196876935360.

The previous prime is 393764145403. The next prime is 393764145421. The reversal of 393764145416 is 614541467393.

It can be written as a sum of positive squares in 2 ways, for example, as 383961165316 + 9802980100 = 619646^2 + 99010^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306071 + ... + 938726.

Almost surely, 2^393764145416 is an apocalyptic number.

It is an amenable number.

393764145416 is a deficient number, since it is larger than the sum of its proper divisors (344562892324).

393764145416 is a wasteful number, since it uses less digits than its factorization.

393764145416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284344 (or 1284340 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 53.

The spelling of 393764145416 in words is "three hundred ninety-three billion, seven hundred sixty-four million, one hundred forty-five thousand, four hundred sixteen".