698899622721 has 16 divisors (see below), whose sum is σ = 986954419584. Its totient is φ = 438404098304.

The previous prime is 698899622699. The next prime is 698899622753. The reversal of 698899622721 is 127226998896.

698899622721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 698899622721 - 2⁶ = 698899622657 is a prime.

It is a super-2 number, since 2×698899622721² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (698899622021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1706466 + ... + 2076011.

It is an arithmetic number, because the mean of its divisors is an integer number (61684651224).

Almost surely, 2^698899622721 is an apocalyptic number.

It is an amenable number.

698899622721 is a deficient number, since it is larger than the sum of its proper divisors (288054796863).

698899622721 is a wasteful number, since it uses less digits than its factorization.

698899622721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786120.

The product of its digits is 94058496, while the sum is 69.

The spelling of 698899622721 in words is "six hundred ninety-eight billion, eight hundred ninety-nine million, six hundred twenty-two thousand, seven hundred twenty-one".