7998998910401 has 8 divisors (see below), whose sum is σ = 8099785748520. Its totient is φ = 7898738374912.

The previous prime is 7998998910391. The next prime is 7998998910437. The reversal of 7998998910401 is 1040198998997.

It can be written as a sum of positive squares in 4 ways, for example, as 119749910401 + 7879249000000 = 346049^2 + 2807000^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7998998910401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7998998910701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131545070 + ... + 131605863.

It is an arithmetic number, because the mean of its divisors is an integer number (1012473218565).

Almost surely, 2^{7998998910401} is an apocalyptic number.

It is an amenable number.

7998998910401 is a deficient number, since it is larger than the sum of its proper divisors (100786838119).

7998998910401 is a wasteful number, since it uses less digits than its factorization.

7998998910401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263151315.

The product of its (nonzero) digits is 105815808, while the sum is 74.

The spelling of 7998998910401 in words is "seven trillion, nine hundred ninety-eight billion, nine hundred ninety-eight million, nine hundred ten thousand, four hundred one".