1612868004 has 96 divisors (see below), whose sum is σ = 4673047680. Its totient is φ = 476812800.

The previous prime is 1612867981. The next prime is 1612868051. The reversal of 1612868004 is 4008682161.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1612868004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32152 + ... + 65264.

It is an arithmetic number, because the mean of its divisors is an integer number (48677580).

Almost surely, 2^1612868004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1612868004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2336523840).

1612868004 is an abundant number, since it is smaller than the sum of its proper divisors (3060179676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1612868004 is a wasteful number, since it uses less digits than its factorization.

1612868004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33178 (or 33170 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1612868004 is about 40160.5279347770. The cubic root of 1612868004 is about 1172.7342494890.

The spelling of 1612868004 in words is "one billion, six hundred twelve million, eight hundred sixty-eight thousand, four".