998835000651 has 16 divisors (see below), whose sum is σ = 1479805726720.
Its totient is φ = 665867423880.
The previous prime is 998835000643. The next prime is 998835000703. The reversal of 998835000651 is 156000538899.
It is a happy number.
998835000651 is a `hidden beast` number, since 9 + 9 + 8 + 83 + 500 + 0 + 6 + 51 = 666.
998835000651 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 998835000651 - 23 = 998835000643 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (998835000151) 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, 204006 + ... + 1428036.
It is an arithmetic number, because the mean of its divisors is an integer number (92487857920).
Almost surely, 2998835000651 is an apocalyptic number.
998835000651 is the 816021-st pentagonal number.
998835000651 is a deficient number, since it is larger than the sum of its proper divisors (480970726069).
998835000651 is a wasteful number, since it uses less digits than its factorization.
998835000651 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1254263 (or 1254257 counting only the distinct ones).
The product of its (nonzero) digits is 2332800, while the sum is 54.
The spelling of 998835000651 in words is "nine hundred ninety-eight billion, eight hundred thirty-five million, six hundred fifty-one", and thus it is an aban number.