1918653116 has 24 divisors (see below), whose sum is σ = 3669837696. Its totient is φ = 873768960.

The previous prime is 1918653101. The next prime is 1918653157. The reversal of 1918653116 is 6113568191.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 452981 + ... + 457196.

It is an arithmetic number, because the mean of its divisors is an integer number (152909904).

Almost surely, 2^1918653116 is an apocalyptic number.

It is an amenable number.

1918653116 is a deficient number, since it is larger than the sum of its proper divisors (1751184580).

1918653116 is a wasteful number, since it uses less digits than its factorization.

1918653116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910229 (or 910227 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 1918653116 is about 43802.4327634893. The cubic root of 1918653116 is about 1242.6023037189.

The spelling of 1918653116 in words is "one billion, nine hundred eighteen million, six hundred fifty-three thousand, one hundred sixteen".