2078117802 has 64 divisors (see below), whose sum is σ = 4759436160. Its totient is φ = 671628672.

The previous prime is 2078117801. The next prime is 2078117813. The reversal of 2078117802 is 2087118702.

It is a happy number.

It is a super-2 number, since 2×2078117802² = 8637147197978622408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2078117801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 623713 + ... + 627035.

It is an arithmetic number, because the mean of its divisors is an integer number (74366190).

Almost surely, 2^2078117802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2078117802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2379718080).

2078117802 is an abundant number, since it is smaller than the sum of its proper divisors (2681318358).

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

2078117802 is a wasteful number, since it uses less digits than its factorization.

2078117802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684 (or 3678 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 2078117802 is about 45586.3773730706. The cubic root of 2078117802 is about 1276.1157071366.

It can be divided in two parts, 20781 and 17802, that added together give a palindrome (38583).

The spelling of 2078117802 in words is "two billion, seventy-eight million, one hundred seventeen thousand, eight hundred two".