399157115434 has 16 divisors (see below), whose sum is σ = 746475644736. Its totient is φ = 155515759200.

The previous prime is 399157115341. The next prime is 399157115527. The reversal of 399157115434 is 434511751993.

It is an interprime number because it is at equal distance from previous prime (399157115341) and next prime (399157115527).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1295964507 + ... + 1295964814.

It is an arithmetic number, because the mean of its divisors is an integer number (46654727796).

Almost surely, 2^399157115434 is an apocalyptic number.

399157115434 is a deficient number, since it is larger than the sum of its proper divisors (347318529302).

399157115434 is a wasteful number, since it uses less digits than its factorization.

399157115434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591929341.

The product of its digits is 2041200, while the sum is 52.

The spelling of 399157115434 in words is "three hundred ninety-nine billion, one hundred fifty-seven million, one hundred fifteen thousand, four hundred thirty-four".