7949965998 has 16 divisors (see below), whose sum is σ = 17123003856. Its totient is φ = 2446143360.

The previous prime is 7949965979. The next prime is 7949966021. The reversal of 7949965998 is 8995699497.

It is a super-2 number, since 2×7949965998² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50961243 + ... + 50961398.

It is an arithmetic number, because the mean of its divisors is an integer number (1070187741).

Almost surely, 2^7949965998 is an apocalyptic number.

7949965998 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

7949965998 is an abundant number, since it is smaller than the sum of its proper divisors (9173037858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7949965998 is a wasteful number, since it uses less digits than its factorization.

7949965998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101922659.

The product of its digits is 396809280, while the sum is 75.

The square root of 7949965998 is about 89162.5818266833. The cubic root of 7949965998 is about 1995.8217771387.

The spelling of 7949965998 in words is "seven billion, nine hundred forty-nine million, nine hundred sixty-five thousand, nine hundred ninety-eight".