84643279002 has 48 divisors (see below), whose sum is σ = 185038425000. Its totient is φ = 27962253312.

The previous prime is 84643279001. The next prime is 84643279009. The reversal of 84643279002 is 20097234648.

It can be written as a sum of positive squares in 4 ways, for example, as 81555365241 + 3087913761 = 285579^2 + 55569^2 .

It is not an unprimeable number, because it can be changed into a prime (84643279001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1169074 + ... + 1239362.

Almost surely, 2^84643279002 is an apocalyptic number.

84643279002 is an abundant number, since it is smaller than the sum of its proper divisors (100395145998).

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

84643279002 is a wasteful number, since it uses less digits than its factorization.

84643279002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70895 (or 70892 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 84643279002 in words is "eighty-four billion, six hundred forty-three million, two hundred seventy-nine thousand, two".