399713892729 has 8 divisors (see below), whose sum is σ = 533908684800. Its totient is φ = 265997514576.

The previous prime is 399713892701. The next prime is 399713892761. The reversal of 399713892729 is 927298317993.

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

It is not a de Polignac number, because 399713892729 - 2¹⁶ = 399713827193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399713892229) 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, 119601529 + ... + 119604870.

It is an arithmetic number, because the mean of its divisors is an integer number (66738585600).

Almost surely, 2^399713892729 is an apocalyptic number.

It is an amenable number.

399713892729 is a deficient number, since it is larger than the sum of its proper divisors (134194792071).

399713892729 is a wasteful number, since it uses less digits than its factorization.

399713892729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239206959.

The product of its digits is 92588832, while the sum is 69.

The spelling of 399713892729 in words is "three hundred ninety-nine billion, seven hundred thirteen million, eight hundred ninety-two thousand, seven hundred twenty-nine".