1869612349 has 8 divisors (see below), whose sum is σ = 2159552448. Its totient is φ = 1599668160.

The previous prime is 1869612323. The next prime is 1869612359. The reversal of 1869612349 is 9432169681.

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 not a de Polignac number, because 1869612349 - 2⁷ = 1869612221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1869612319) 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, 4998777 + ... + 4999150.

It is an arithmetic number, because the mean of its divisors is an integer number (269944056).

Almost surely, 2^1869612349 is an apocalyptic number.

It is an amenable number.

1869612349 is a deficient number, since it is larger than the sum of its proper divisors (289940099).

1869612349 is a wasteful number, since it uses less digits than its factorization.

1869612349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9997955.

The product of its digits is 559872, while the sum is 49.

The square root of 1869612349 is about 43239.0142001411. The cubic root of 1869612349 is about 1231.9238294551.

The spelling of 1869612349 in words is "one billion, eight hundred sixty-nine million, six hundred twelve thousand, three hundred forty-nine".