1868161794 has 16 divisors (see below), whose sum is σ = 3738860832. Its totient is φ = 622297728.

The previous prime is 1868161777. The next prime is 1868161811. The reversal of 1868161794 is 4971618681.

1868161794 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1868161777) and next prime (1868161811).

It is a super-2 number, since 2×1868161794² = 6980056977122596872, which contains 22 as substring.

It is a Curzon 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, 96079 + ... + 113874.

It is an arithmetic number, because the mean of its divisors is an integer number (233678802).

Almost surely, 2^1868161794 is an apocalyptic number.

1868161794 is an abundant number, since it is smaller than the sum of its proper divisors (1870699038).

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

1868161794 is a wasteful number, since it uses less digits than its factorization.

1868161794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211441.

The product of its digits is 580608, while the sum is 51.

The square root of 1868161794 is about 43222.2372627794. The cubic root of 1868161794 is about 1231.6051474180.

The spelling of 1868161794 in words is "one billion, eight hundred sixty-eight million, one hundred sixty-one thousand, seven hundred ninety-four".