1872147816 has 336 divisors, whose sum is σ = 6628826400. Its totient is φ = 484989120.

The previous prime is 1872147791. The next prime is 1872147829. The reversal of 1872147816 is 6187412781.

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 4939515 + ... + 4939893.

It is an arithmetic number, because the mean of its divisors is an integer number (19728650).

Almost surely, 2^1872147816 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 1872147816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3314413200).

1872147816 is an abundant number, since it is smaller than the sum of its proper divisors (4756678584).

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

1872147816 is a wasteful number, since it uses less digits than its factorization.

1872147816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 402 counting only the distinct ones).

The product of its digits is 150528, while the sum is 45.

The square root of 1872147816 is about 43268.3234711030. The cubic root of 1872147816 is about 1232.4804673602.

The spelling of 1872147816 in words is "one billion, eight hundred seventy-two million, one hundred forty-seven thousand, eight hundred sixteen".