399246294535 has 16 divisors (see below), whose sum is σ = 545373596160. Its totient is φ = 277736551840.

The previous prime is 399246294529. The next prime is 399246294547. The reversal of 399246294535 is 535492642993.

It is not a de Polignac number, because 399246294535 - 2⁷ = 399246294407 is a prime.

It is a super-4 number, since 4×399246294535⁴ (a number of 48 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157803595 + ... + 157806124.

It is an arithmetic number, because the mean of its divisors is an integer number (34085849760).

Almost surely, 2^399246294535 is an apocalyptic number.

399246294535 is a deficient number, since it is larger than the sum of its proper divisors (146127301625).

399246294535 is a wasteful number, since it uses less digits than its factorization.

399246294535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315609758.

The product of its digits is 62985600, while the sum is 61.

The spelling of 399246294535 in words is "three hundred ninety-nine billion, two hundred forty-six million, two hundred ninety-four thousand, five hundred thirty-five".