399713951445 has 32 divisors (see below), whose sum is σ = 661842576000. Its totient is φ = 205752847104.

The previous prime is 399713951437. The next prime is 399713951459. The reversal of 399713951445 is 544159317993.

It is not a de Polignac number, because 399713951445 - 2³ = 399713951437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1003839 + ... + 1344291.

It is an arithmetic number, because the mean of its divisors is an integer number (20682580500).

Almost surely, 2^399713951445 is an apocalyptic number.

It is an amenable number.

399713951445 is a deficient number, since it is larger than the sum of its proper divisors (262128624555).

399713951445 is a wasteful number, since it uses less digits than its factorization.

399713951445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343189.

The product of its digits is 18370800, while the sum is 60.

The spelling of 399713951445 in words is "three hundred ninety-nine billion, seven hundred thirteen million, nine hundred fifty-one thousand, four hundred forty-five".