1868805454 has 4 divisors (see below), whose sum is σ = 2803208184. Its totient is φ = 934402726.

The previous prime is 1868805437. The next prime is 1868805467. The reversal of 1868805454 is 4545088681.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4545088681 = 7 ⋅649298383.

It is a super-2 number, since 2×1868805454² = 6984867649800292232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1868805398 and 1868805407.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 467201362 + ... + 467201365.

It is an arithmetic number, because the mean of its divisors is an integer number (700802046).

Almost surely, 2^1868805454 is an apocalyptic number.

1868805454 is a deficient number, since it is larger than the sum of its proper divisors (934402730).

1868805454 is an equidigital number, since it uses as much as digits as its factorization.

1868805454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934402729.

The product of its (nonzero) digits is 1228800, while the sum is 49.

The square root of 1868805454 is about 43229.6825572430. The cubic root of 1868805454 is about 1231.7465776991.

The spelling of 1868805454 in words is "one billion, eight hundred sixty-eight million, eight hundred five thousand, four hundred fifty-four".