1612868818 has 16 divisors (see below), whose sum is σ = 2639948256. Its totient is φ = 732925440.

The previous prime is 1612868791. The next prime is 1612868821. The reversal of 1612868818 is 8188682161.

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, 102505 + ... + 117187.

It is an arithmetic number, because the mean of its divisors is an integer number (164996766).

Almost surely, 2^1612868818 is an apocalyptic number.

1612868818 is a deficient number, since it is larger than the sum of its proper divisors (1027079438).

1612868818 is a wasteful number, since it uses less digits than its factorization.

1612868818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19689.

The product of its digits is 294912, while the sum is 49.

The square root of 1612868818 is about 40160.5380691046. The cubic root of 1612868818 is about 1172.7344467784.

The spelling of 1612868818 in words is "one billion, six hundred twelve million, eight hundred sixty-eight thousand, eight hundred eighteen".