698951497998 has 16 divisors (see below), whose sum is σ = 1505433995856. Its totient is φ = 215061999360.

The previous prime is 698951497991. The next prime is 698951498029. The reversal of 698951497998 is 899794159896.

It is a self number, because there is not a number n which added to its sum of digits gives 698951497998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698951497991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4480458243 + ... + 4480458398.

It is an arithmetic number, because the mean of its divisors is an integer number (94089624741).

Almost surely, 2^698951497998 is an apocalyptic number.

698951497998 is an abundant number, since it is smaller than the sum of its proper divisors (806482497858).

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

698951497998 is a wasteful number, since it uses less digits than its factorization.

698951497998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8960916659.

The product of its digits is 3174474240, while the sum is 84.

The spelling of 698951497998 in words is "six hundred ninety-eight billion, nine hundred fifty-one million, four hundred ninety-seven thousand, nine hundred ninety-eight".