84138000698 has 4 divisors (see below), whose sum is σ = 126207001050. Its totient is φ = 42069000348.

The previous prime is 84138000677. The next prime is 84138000721. The reversal of 84138000698 is 89600083148.

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

It can be written as a sum of positive squares in only one way, i.e., 84057665329 + 80335369 = 289927^2 + 8963^2 .

It is a super-2 number, since 2×84138000698² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21034500173 + ... + 21034500176.

Almost surely, 2^84138000698 is an apocalyptic number.

84138000698 is a deficient number, since it is larger than the sum of its proper divisors (42069000352).

84138000698 is a wasteful number, since it uses less digits than its factorization.

84138000698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42069000351.

The product of its (nonzero) digits is 331776, while the sum is 47.

The spelling of 84138000698 in words is "eighty-four billion, one hundred thirty-eight million, six hundred ninety-eight", and thus it is an aban number.