3801612816 has 30 divisors (see below), whose sum is σ = 10639236270. Its totient is φ = 1267204224.

The previous prime is 3801612803. The next prime is 3801612821. The reversal of 3801612816 is 6182161083.

3801612816 is a `hidden beast` number, since 38 + 0 + 1 + 612 + 8 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2381830416 + 1419782400 = 48804^2 + 37680^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13199901 + ... + 13200188.

It is an arithmetic number, because the mean of its divisors is an integer number (354641209).

Almost surely, 2^3801612816 is an apocalyptic number.

3801612816 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3801612816 is an abundant number, since it is smaller than the sum of its proper divisors (6837623454).

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

3801612816 is a wasteful number, since it uses less digits than its factorization.

3801612816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26400103 (or 26400094 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 3801612816 is about 61657.2203071141. The cubic root of 3801612816 is about 1560.7114900476.

Adding to 3801612816 its reverse (6182161083), we get a palindrome (9983773899).

The spelling of 3801612816 in words is "three billion, eight hundred one million, six hundred twelve thousand, eight hundred sixteen".