84690836998 has 4 divisors (see below), whose sum is σ = 127036255500. Its totient is φ = 42345418498.

The previous prime is 84690836953. The next prime is 84690837001. The reversal of 84690836998 is 89963809648.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21172709248 + ... + 21172709251.

It is an arithmetic number, because the mean of its divisors is an integer number (31759063875).

Almost surely, 2^84690836998 is an apocalyptic number.

84690836998 is a deficient number, since it is larger than the sum of its proper divisors (42345418502).

84690836998 is a wasteful number, since it uses less digits than its factorization.

84690836998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42345418501.

The product of its (nonzero) digits is 161243136, while the sum is 70.

The spelling of 84690836998 in words is "eighty-four billion, six hundred ninety million, eight hundred thirty-six thousand, nine hundred ninety-eight".