399816360507 has 8 divisors (see below), whose sum is σ = 533996640576. Its totient is φ = 266090160392.

The previous prime is 399816360499. The next prime is 399816360563. The reversal of 399816360507 is 705063618993.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 399816360507 - 2³ = 399816360499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399816360007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113517933 + ... + 113521454.

It is an arithmetic number, because the mean of its divisors is an integer number (66749580072).

Almost surely, 2^399816360507 is an apocalyptic number.

399816360507 is a deficient number, since it is larger than the sum of its proper divisors (134180280069).

399816360507 is a wasteful number, since it uses less digits than its factorization.

399816360507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227039977.

The product of its (nonzero) digits is 7348320, while the sum is 57.

The spelling of 399816360507 in words is "three hundred ninety-nine billion, eight hundred sixteen million, three hundred sixty thousand, five hundred seven".