85219693056 has 100 divisors (see below), whose sum is σ = 254358468342. Its totient is φ = 28406550528.

The previous prime is 85219692997. The next prime is 85219693099. The reversal of 85219693056 is 65039691258.

It is a happy number.

85219693056 is a `hidden beast` number, since 8 + 521 + 9 + 69 + 3 + 0 + 56 = 666.

It can be written as a sum of positive squares in only one way, i.e., 66069561600 + 19150131456 = 257040^2 + 138384^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 85219692993 and 85219693011.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 985965 + ... + 1068908.

Almost surely, 2^85219693056 is an apocalyptic number.

It is an amenable number.

85219693056 is an abundant number, since it is smaller than the sum of its proper divisors (169138775286).

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

85219693056 is an equidigital number, since it uses as much as digits as its factorization.

85219693056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054903 (or 2054878 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 85219693056 in words is "eighty-five billion, two hundred nineteen million, six hundred ninety-three thousand, fifty-six".