68855700190 has 32 divisors (see below), whose sum is σ = 127310950080. Its totient is φ = 26793483264.

The previous prime is 68855700119. The next prime is 68855700191. The reversal of 68855700190 is 9100755886.

It is a super-2 number, since 2×68855700190² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68855700191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3079471 + ... + 3101749.

It is an arithmetic number, because the mean of its divisors is an integer number (3978467190).

Almost surely, 2^68855700190 is an apocalyptic number.

68855700190 is a deficient number, since it is larger than the sum of its proper divisors (58455249890).

68855700190 is a wasteful number, since it uses less digits than its factorization.

68855700190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30676.

The product of its (nonzero) digits is 604800, while the sum is 49.

It can be divided in two parts, 6885 and 5700190, that added together give a palindrome (5707075).

The spelling of 68855700190 in words is "sixty-eight billion, eight hundred fifty-five million, seven hundred thousand, one hundred ninety".