85508792450 has 48 divisors (see below), whose sum is σ = 164888899560. Its totient is φ = 32952192000.

The previous prime is 85508792449. The next prime is 85508792477. The reversal of 85508792450 is 5429780558.

It can be written as a sum of positive squares in 12 ways, for example, as 5166590641 + 80342201809 = 71879^2 + 283447^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85508792392 and 85508792401.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 604490 + ... + 732410.

Almost surely, 2^85508792450 is an apocalyptic number.

85508792450 is a deficient number, since it is larger than the sum of its proper divisors (79380107110).

85508792450 is a wasteful number, since it uses less digits than its factorization.

85508792450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128423 (or 128418 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 53.

The spelling of 85508792450 in words is "eighty-five billion, five hundred eight million, seven hundred ninety-two thousand, four hundred fifty".