398878156303 has 16 divisors (see below), whose sum is σ = 468545368320. Its totient is φ = 335501603200.

The previous prime is 398878156291. The next prime is 398878156319. The reversal of 398878156303 is 303651878893.

It is a cyclic number.

It is not a de Polignac number, because 398878156303 - 2¹³ = 398878148111 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 (398878156333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18065563 + ... + 18087628.

It is an arithmetic number, because the mean of its divisors is an integer number (29284085520).

Almost surely, 2^398878156303 is an apocalyptic number.

398878156303 is a deficient number, since it is larger than the sum of its proper divisors (69667212017).

398878156303 is a wasteful number, since it uses less digits than its factorization.

398878156303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36153278.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 398878156303 in words is "three hundred ninety-eight billion, eight hundred seventy-eight million, one hundred fifty-six thousand, three hundred three".