3802194777888 has 648 divisors, whose sum is σ = 12430698262164. Its totient is φ = 1101568066560.

The previous prime is 3802194777847. The next prime is 3802194777889. The reversal of 3802194777888 is 8887774912083.

3802194777888 is a `hidden beast` number, since 3 + 8 + 0 + 2 + 1 + 9 + 477 + 78 + 88 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1762702318224 + 2039492459664 = 1327668^2 + 1428108^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (3802194777889) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 102762021006 + ... + 102762021042.

Almost surely, 2^{3802194777888} 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 3802194777888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6215349131082).

3802194777888 is an abundant number, since it is smaller than the sum of its proper divisors (8628503484276).

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

3802194777888 is an frugal number, since it uses more digits than its factorization.

3802194777888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 303464448, while the sum is 72.

The spelling of 3802194777888 in words is "three trillion, eight hundred two billion, one hundred ninety-four million, seven hundred seventy-seven thousand, eight hundred eighty-eight".