84623939394 has 16 divisors (see below), whose sum is σ = 169521307680. Its totient is φ = 28162408320.

The previous prime is 84623939383. The next prime is 84623939467. The reversal of 84623939394 is 49393932648.

It is a super-2 number, since 2×84623939394² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11388847 + ... + 11396274.

It is an arithmetic number, because the mean of its divisors is an integer number (10595081730).

Almost surely, 2^84623939394 is an apocalyptic number.

84623939394 is an abundant number, since it is smaller than the sum of its proper divisors (84897368286).

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

84623939394 is a wasteful number, since it uses less digits than its factorization.

84623939394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22785745.

The product of its digits is 30233088, while the sum is 60.

The spelling of 84623939394 in words is "eighty-four billion, six hundred twenty-three million, nine hundred thirty-nine thousand, three hundred ninety-four".