2231816781374 has 8 divisors (see below), whose sum is σ = 3350067881160. Its totient is φ = 1115127487656.

The previous prime is 2231816781367. The next prime is 2231816781391. The reversal of 2231816781374 is 4731876181322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2231816781374³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390447944 + ... + 390453659.

It is an arithmetic number, because the mean of its divisors is an integer number (418758485145).

Almost surely, 2^{2231816781374} is an apocalyptic number.

2231816781374 is a deficient number, since it is larger than the sum of its proper divisors (1118251099786).

2231816781374 is a wasteful number, since it uses less digits than its factorization.

2231816781374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780903034.

The product of its digits is 2709504, while the sum is 53.

The spelling of 2231816781374 in words is "two trillion, two hundred thirty-one billion, eight hundred sixteen million, seven hundred eighty-one thousand, three hundred seventy-four".