21917046298 has 64 divisors (see below), whose sum is σ = 39055822848. Its totient is φ = 9030035520.

The previous prime is 21917046287. The next prime is 21917046313. The reversal of 21917046298 is 89264071912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27024313 + ... + 27025123.

It is an arithmetic number, because the mean of its divisors is an integer number (610247232).

Almost surely, 2^21917046298 is an apocalyptic number.

21917046298 is a deficient number, since it is larger than the sum of its proper divisors (17138776550).

21917046298 is a wasteful number, since it uses less digits than its factorization.

21917046298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 21917046298 in words is "twenty-one billion, nine hundred seventeen million, forty-six thousand, two hundred ninety-eight".