1853627138 has 16 divisors (see below), whose sum is σ = 3107190240. Its totient is φ = 822007200.

The previous prime is 1853627107. The next prime is 1853627143. The reversal of 1853627138 is 8317263581.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026608 + ... + 1028411.

It is an arithmetic number, because the mean of its divisors is an integer number (194199390).

Almost surely, 2^1853627138 is an apocalyptic number.

1853627138 is a deficient number, since it is larger than the sum of its proper divisors (1253563102).

1853627138 is a wasteful number, since it uses less digits than its factorization.

1853627138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055073.

The product of its digits is 241920, while the sum is 44.

The square root of 1853627138 is about 43053.7703110889. The cubic root of 1853627138 is about 1228.4027868228.

The spelling of 1853627138 in words is "one billion, eight hundred fifty-three million, six hundred twenty-seven thousand, one hundred thirty-eight".