68191190 has 16 divisors (see below), whose sum is σ = 129204720. Its totient is φ = 25840800.

The previous prime is 68191181. The next prime is 68191243. The reversal of 68191190 is 9119186.

68191190 is nontrivially palindromic in base 15.

It is a super-2 number, since 2×68191190² = 9300076787232200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68191190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179261 + ... + 179640.

It is an arithmetic number, because the mean of its divisors is an integer number (8075295).

Almost surely, 2^68191190 is an apocalyptic number.

68191190 is a deficient number, since it is larger than the sum of its proper divisors (61013530).

68191190 is a wasteful number, since it uses less digits than its factorization.

68191190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358927.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 68191190 is about 8257.7957107209. The cubic root of 68191190 is about 408.5476873537.

The spelling of 68191190 in words is "sixty-eight million, one hundred ninety-one thousand, one hundred ninety".