1618817802 has 48 divisors (see below), whose sum is σ = 3770919360. Its totient is φ = 461943552.

The previous prime is 1618817791. The next prime is 1618817831. The reversal of 1618817802 is 2087188161.

It is a super-2 number, since 2×1618817802² = 5241142152144222408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 270163 + ... + 276089.

It is an arithmetic number, because the mean of its divisors is an integer number (78560820).

Almost surely, 2^1618817802 is an apocalyptic number.

1618817802 is an abundant number, since it is smaller than the sum of its proper divisors (2152101558).

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

1618817802 is a wasteful number, since it uses less digits than its factorization.

1618817802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875 (or 6868 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 42.

The square root of 1618817802 is about 40234.5349420122. The cubic root of 1618817802 is about 1174.1745346376.

The spelling of 1618817802 in words is "one billion, six hundred eighteen million, eight hundred seventeen thousand, eight hundred two".