398878837039 has 8 divisors (see below), whose sum is σ = 399947923440. Its totient is φ = 397810074816.

The previous prime is 398878837031. The next prime is 398878837067. The reversal of 398878837039 is 930738878893.

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

It is a cyclic number.

It is not a de Polignac number, because 398878837039 - 2³ = 398878837031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398878837031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2492172 + ... + 2647390.

It is an arithmetic number, because the mean of its divisors is an integer number (49993490430).

Almost surely, 2^398878837039 is an apocalyptic number.

398878837039 is a deficient number, since it is larger than the sum of its proper divisors (1069086401).

398878837039 is a wasteful number, since it uses less digits than its factorization.

398878837039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162089.

The product of its (nonzero) digits is 438939648, while the sum is 73.

The spelling of 398878837039 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, eight hundred thirty-seven thousand, thirty-nine".