1868353357 has 8 divisors (see below), whose sum is σ = 2042104736. Its totient is φ = 1698892272.

The previous prime is 1868353301. The next prime is 1868353373. The reversal of 1868353357 is 7533538681.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1868353357 is a prime.

It is a super-2 number, since 2×1868353357² = 6981488533226338898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1868353357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868353387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071663 + ... + 1073404.

It is an arithmetic number, because the mean of its divisors is an integer number (255263092).

Almost surely, 2^1868353357 is an apocalyptic number.

It is an amenable number.

1868353357 is a deficient number, since it is larger than the sum of its proper divisors (173751379).

1868353357 is a wasteful number, since it uses less digits than its factorization.

1868353357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145147.

The product of its digits is 1814400, while the sum is 49.

The square root of 1868353357 is about 43224.4532296245. The cubic root of 1868353357 is about 1231.6472426144.

The spelling of 1868353357 in words is "one billion, eight hundred sixty-eight million, three hundred fifty-three thousand, three hundred fifty-seven".