374979893891 has 4 divisors (see below), whose sum is σ = 394715677800. Its totient is φ = 355244109984.

The previous prime is 374979893887. The next prime is 374979893963. The reversal of 374979893891 is 198398979473.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 374979893891 - 2² = 374979893887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (374979893591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9867891926 + ... + 9867891963.

It is an arithmetic number, because the mean of its divisors is an integer number (98678919450).

Almost surely, 2^374979893891 is an apocalyptic number.

374979893891 is a deficient number, since it is larger than the sum of its proper divisors (19735783909).

374979893891 is a wasteful number, since it uses less digits than its factorization.

374979893891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19735783908.

The product of its digits is 740710656, while the sum is 77.

The spelling of 374979893891 in words is "three hundred seventy-four billion, nine hundred seventy-nine million, eight hundred ninety-three thousand, eight hundred ninety-one".