397881016122 has 16 divisors (see below), whose sum is σ = 830360381760. Its totient is φ = 126860613792.

The previous prime is 397881016079. The next prime is 397881016123. The reversal of 397881016122 is 221610188793.

It is not an unprimeable number, because it can be changed into a prime (397881016123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1441597747 + ... + 1441598022.

It is an arithmetic number, because the mean of its divisors is an integer number (51897523860).

Almost surely, 2^397881016122 is an apocalyptic number.

397881016122 is an abundant number, since it is smaller than the sum of its proper divisors (432479365638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397881016122 is a wasteful number, since it uses less digits than its factorization.

397881016122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883195797.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 397881016122 in words is "three hundred ninety-seven billion, eight hundred eighty-one million, sixteen thousand, one hundred twenty-two".