192687313690 has 8 divisors (see below), whose sum is σ = 346837164660. Its totient is φ = 77074925472.

The previous prime is 192687313669. The next prime is 192687313691. The reversal of 192687313690 is 96313786291.

192687313690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 162834039729 + 29853273961 = 403527^2 + 172781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×192687313690² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (192687313691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9634365675 + ... + 9634365694.

Almost surely, 2^192687313690 is an apocalyptic number.

192687313690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

192687313690 is a deficient number, since it is larger than the sum of its proper divisors (154149850970).

192687313690 is a wasteful number, since it uses less digits than its factorization.

192687313690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19268731376.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 192687313690 in words is "one hundred ninety-two billion, six hundred eighty-seven million, three hundred thirteen thousand, six hundred ninety".