85690797192 has 384 divisors, whose sum is σ = 313629039360. Its totient is φ = 20411688960.

The previous prime is 85690797133. The next prime is 85690797211. The reversal of 85690797192 is 29179709658.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11311518 + ... + 11319090.

It is an arithmetic number, because the mean of its divisors is an integer number (816742290).

Almost surely, 2^85690797192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85690797192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156814519680).

85690797192 is an abundant number, since it is smaller than the sum of its proper divisors (227938242168).

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

85690797192 is a wasteful number, since it uses less digits than its factorization.

85690797192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7773 (or 7766 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 63.

The spelling of 85690797192 in words is "eighty-five billion, six hundred ninety million, seven hundred ninety-seven thousand, one hundred ninety-two".