7981698801 has 8 divisors (see below), whose sum is σ = 10761841440. Its totient is φ = 5261344352.

The previous prime is 7981698799. The next prime is 7981698827. The reversal of 7981698801 is 1088961897.

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

It is a cyclic number.

It is not a de Polignac number, because 7981698801 - 2¹ = 7981698799 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7981698871) 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, 14946735 + ... + 14947268.

It is an arithmetic number, because the mean of its divisors is an integer number (1345230180).

Almost surely, 2^7981698801 is an apocalyptic number.

It is an amenable number.

7981698801 is a deficient number, since it is larger than the sum of its proper divisors (2780142639).

7981698801 is a wasteful number, since it uses less digits than its factorization.

7981698801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29894095.

The product of its (nonzero) digits is 1741824, while the sum is 57.

The square root of 7981698801 is about 89340.3537098438. The cubic root of 7981698801 is about 1998.4737356382.

The spelling of 7981698801 in words is "seven billion, nine hundred eighty-one million, six hundred ninety-eight thousand, eight hundred one".