2123817990374 has 32 divisors (see below), whose sum is σ = 3486534057216. Its totient is φ = 965925596160.

The previous prime is 2123817990361. The next prime is 2123817990403. The reversal of 2123817990374 is 4730997183212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533039 + ... + 2128794.

It is an arithmetic number, because the mean of its divisors is an integer number (108954189288).

Almost surely, 2^{2123817990374} is an apocalyptic number.

2123817990374 is a deficient number, since it is larger than the sum of its proper divisors (1362716066842).

2123817990374 is a wasteful number, since it uses less digits than its factorization.

2123817990374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662640.

The product of its (nonzero) digits is 4572288, while the sum is 56.

The spelling of 2123817990374 in words is "two trillion, one hundred twenty-three billion, eight hundred seventeen million, nine hundred ninety thousand, three hundred seventy-four".