7998190340351 has 4 divisors (see below), whose sum is σ = 7998264752304. Its totient is φ = 7998115928400.

The previous prime is 7998190340347. The next prime is 7998190340363. The reversal of 7998190340351 is 1530430918997.

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 7998190340351 - 2² = 7998190340347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7998190340381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37044515 + ... + 37259796.

It is an arithmetic number, because the mean of its divisors is an integer number (1999566188076).

Almost surely, 2^{7998190340351} is an apocalyptic number.

7998190340351 is a deficient number, since it is larger than the sum of its proper divisors (74411953).

7998190340351 is a wasteful number, since it uses less digits than its factorization.

7998190340351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74411952.

The product of its (nonzero) digits is 7348320, while the sum is 59.

The spelling of 7998190340351 in words is "seven trillion, nine hundred ninety-eight billion, one hundred ninety million, three hundred forty thousand, three hundred fifty-one".