398393734075 has 6 divisors (see below), whose sum is σ = 494008230284. Its totient is φ = 318714987240.

The previous prime is 398393734051. The next prime is 398393734091. The reversal of 398393734075 is 570437393893.

It is not a de Polignac number, because 398393734075 - 2¹¹ = 398393732027 is a prime.

It is a super-2 number, since 2×398393734075² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7967874657 + ... + 7967874706.

Almost surely, 2^398393734075 is an apocalyptic number.

398393734075 is a deficient number, since it is larger than the sum of its proper divisors (95614496209).

398393734075 is a wasteful number, since it uses less digits than its factorization.

398393734075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15935749373 (or 15935749368 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 61.

The spelling of 398393734075 in words is "three hundred ninety-eight billion, three hundred ninety-three million, seven hundred thirty-four thousand, seventy-five".