7874231998 has 4 divisors (see below), whose sum is σ = 11811348000. Its totient is φ = 3937115998.

The previous prime is 7874231947. The next prime is 7874232001. The reversal of 7874231998 is 8991324787.

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

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1968557998 + ... + 1968558001.

It is an arithmetic number, because the mean of its divisors is an integer number (2952837000).

Almost surely, 2^7874231998 is an apocalyptic number.

7874231998 is a deficient number, since it is larger than the sum of its proper divisors (3937116002).

7874231998 is a wasteful number, since it uses less digits than its factorization.

7874231998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937116001.

The product of its digits is 6096384, while the sum is 58.

The square root of 7874231998 is about 88736.8694399346. The cubic root of 7874231998 is about 1989.4639262076.

The spelling of 7874231998 in words is "seven billion, eight hundred seventy-four million, two hundred thirty-one thousand, nine hundred ninety-eight".