1814650997 has 8 divisors (see below), whose sum is σ = 1846057440. Its totient is φ = 1783298160.

The previous prime is 1814650973. The next prime is 1814651029. The reversal of 1814650997 is 7990564181.

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 1814650997 - 2⁸ = 1814650741 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 (1814350997) 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, 58154 + ... + 83732.

It is an arithmetic number, because the mean of its divisors is an integer number (230757180).

Almost surely, 2^1814650997 is an apocalyptic number.

It is an amenable number.

1814650997 is a deficient number, since it is larger than the sum of its proper divisors (31406443).

1814650997 is a wasteful number, since it uses less digits than its factorization.

1814650997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26803.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 1814650997 is about 42598.7206028538. The cubic root of 1814650997 is about 1219.7318673034.

The spelling of 1814650997 in words is "one billion, eight hundred fourteen million, six hundred fifty thousand, nine hundred ninety-seven".