385661623514 has 8 divisors (see below), whose sum is σ = 594127366068. Its totient is φ = 187619168160.

The previous prime is 385661623499. The next prime is 385661623561. The reversal of 385661623514 is 415326166583.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 382006816489 + 3654807025 = 618067^2 + 60455^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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, 2605821707 + ... + 2605821854.

Almost surely, 2^385661623514 is an apocalyptic number.

385661623514 is a deficient number, since it is larger than the sum of its proper divisors (208465742554).

385661623514 is a wasteful number, since it uses less digits than its factorization.

385661623514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211643600.

The product of its digits is 3110400, while the sum is 50.

The spelling of 385661623514 in words is "three hundred eighty-five billion, six hundred sixty-one million, six hundred twenty-three thousand, five hundred fourteen".