399542709914 has 4 divisors (see below), whose sum is σ = 599314064874. Its totient is φ = 199771354956.

The previous prime is 399542709877. The next prime is 399542709931. The reversal of 399542709914 is 419907245993.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 208088331889 + 191454378025 = 456167^2 + 437555^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99885677477 + ... + 99885677480.

Almost surely, 2^399542709914 is an apocalyptic number.

399542709914 is a deficient number, since it is larger than the sum of its proper divisors (199771354960).

399542709914 is a wasteful number, since it uses less digits than its factorization.

399542709914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199771354959.

The product of its (nonzero) digits is 22044960, while the sum is 62.

The spelling of 399542709914 in words is "three hundred ninety-nine billion, five hundred forty-two million, seven hundred nine thousand, nine hundred fourteen".