85196067840 has 352 divisors, whose sum is σ = 326068431360. Its totient is φ = 20970897408.

The previous prime is 85196067727. The next prime is 85196067841. The reversal of 85196067840 is 4876069158.

85196067840 is a `hidden beast` number, since 8 + 519 + 60 + 67 + 8 + 4 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85196067841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1773417 + ... + 1820823.

Almost surely, 2^85196067840 is an apocalyptic number.

85196067840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85196067840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163034215680).

85196067840 is an abundant number, since it is smaller than the sum of its proper divisors (240872363520).

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

85196067840 is a wasteful number, since it uses less digits than its factorization.

85196067840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47454 (or 47430 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 85196067840 in words is "eighty-five billion, one hundred ninety-six million, sixty-seven thousand, eight hundred forty".