85423584620 has 24 divisors (see below), whose sum is σ = 195697667088. Its totient is φ = 31063121600.

The previous prime is 85423584611. The next prime is 85423584683. The reversal of 85423584620 is 2648532458.

It is a happy number.

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, 194144291 + ... + 194144730.

It is an arithmetic number, because the mean of its divisors is an integer number (8154069462).

Almost surely, 2^85423584620 is an apocalyptic number.

It is an amenable number.

85423584620 is an abundant number, since it is smaller than the sum of its proper divisors (110274082468).

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

85423584620 is a wasteful number, since it uses less digits than its factorization.

85423584620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388289041 (or 388289039 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 85423584620 in words is "eighty-five billion, four hundred twenty-three million, five hundred eighty-four thousand, six hundred twenty".