1813386047 has 8 divisors (see below), whose sum is σ = 1980046080. Its totient is φ = 1647027160.

The previous prime is 1813386041. The next prime is 1813386059. The reversal of 1813386047 is 7406833181.

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 1813386047 - 2²⁴ = 1796608831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1813385995 and 1813386013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813386041) 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, 62597 + ... + 86862.

It is an arithmetic number, because the mean of its divisors is an integer number (247505760).

Almost surely, 2^1813386047 is an apocalyptic number.

1813386047 is a deficient number, since it is larger than the sum of its proper divisors (166660033).

1813386047 is a wasteful number, since it uses less digits than its factorization.

1813386047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150573.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 1813386047 is about 42583.8707376396. The cubic root of 1813386047 is about 1219.4483860769.

The spelling of 1813386047 in words is "one billion, eight hundred thirteen million, three hundred eighty-six thousand, forty-seven".