1818054797 has 16 divisors (see below), whose sum is σ = 1996038912. Its totient is φ = 1645686720.

The previous prime is 1818054793. The next prime is 1818054857. The reversal of 1818054797 is 7974508181.

It is a cyclic number.

It is not a de Polignac number, because 1818054797 - 2² = 1818054793 is a prime.

It is a super-2 number, since 2×1818054797² = 6610646489789422418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818054793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271868 + ... + 278474.

It is an arithmetic number, because the mean of its divisors is an integer number (124752432).

Almost surely, 2^1818054797 is an apocalyptic number.

It is an amenable number.

1818054797 is a deficient number, since it is larger than the sum of its proper divisors (177984115).

1818054797 is a wasteful number, since it uses less digits than its factorization.

1818054797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028.

The product of its (nonzero) digits is 564480, while the sum is 50.

The square root of 1818054797 is about 42638.6537897246. The cubic root of 1818054797 is about 1220.4940212378.

The spelling of 1818054797 in words is "one billion, eight hundred eighteen million, fifty-four thousand, seven hundred ninety-seven".