351815844981864 has 32 divisors (see below), whose sum is σ = 917780465171520. Its totient is φ = 112173167965056.

The previous prime is 351815844981863. The next prime is 351815844981871. The reversal of 351815844981864 is 468189448518153.

It is not an unprimeable number, because it can be changed into a prime (351815844981863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318673772077 + ... + 318673773180.

It is an arithmetic number, because the mean of its divisors is an integer number (28680639536610).

Almost surely, 2^{351815844981864} is an apocalyptic number.

It is an amenable number.

351815844981864 is an abundant number, since it is smaller than the sum of its proper divisors (565964620189656).

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

351815844981864 is a wasteful number, since it uses less digits than its factorization.

351815844981864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637347545289 (or 637347545285 counting only the distinct ones).

The product of its digits is 1061683200, while the sum is 75.

The spelling of 351815844981864 in words is "three hundred fifty-one trillion, eight hundred fifteen billion, eight hundred forty-four million, nine hundred eighty-one thousand, eight hundred sixty-four".