398878837045 has 48 divisors (see below), whose sum is σ = 528633241920. Its totient is φ = 288717192192.

The previous prime is 398878837031. The next prime is 398878837067. The reversal of 398878837045 is 540738878893.

It is not a de Polignac number, because 398878837045 - 2¹¹ = 398878834997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17288157 + ... + 17311213.

It is an arithmetic number, because the mean of its divisors is an integer number (11013192540).

Almost surely, 2^398878837045 is an apocalyptic number.

It is an amenable number.

398878837045 is a deficient number, since it is larger than the sum of its proper divisors (129754404875).

398878837045 is a wasteful number, since it uses less digits than its factorization.

398878837045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23494 (or 23481 counting only the distinct ones).

The product of its (nonzero) digits is 325140480, while the sum is 70.

The spelling of 398878837045 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, eight hundred thirty-seven thousand, forty-five".