399770018108 has 12 divisors (see below), whose sum is σ = 718505573352. Its totient is φ = 194482711440.

The previous prime is 399770018101. The next prime is 399770018129. The reversal of 399770018108 is 801810077993.

It is a self number, because there is not a number n which added to its sum of digits gives 399770018108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399770018101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350574238 + ... + 1350574533.

It is an arithmetic number, because the mean of its divisors is an integer number (59875464446).

Almost surely, 2^399770018108 is an apocalyptic number.

It is an amenable number.

399770018108 is a deficient number, since it is larger than the sum of its proper divisors (318735555244).

399770018108 is a wasteful number, since it uses less digits than its factorization.

399770018108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2701148812 (or 2701148810 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 53.

The spelling of 399770018108 in words is "three hundred ninety-nine billion, seven hundred seventy million, eighteen thousand, one hundred eight".