37782321216 has 28 divisors (see below), whose sum is σ = 99965725392. Its totient is φ = 12594107008.

The previous prime is 37782321167. The next prime is 37782321217. The reversal of 37782321216 is 61212328773.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (37782321217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98391270 + ... + 98391653.

Almost surely, 2^37782321216 is an apocalyptic number.

It is an amenable number.

37782321216 is an abundant number, since it is smaller than the sum of its proper divisors (62183404176).

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

37782321216 is a wasteful number, since it uses less digits than its factorization.

37782321216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196782938 (or 196782928 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

Adding to 37782321216 its reverse (61212328773), we get a palindrome (98994649989).

The spelling of 37782321216 in words is "thirty-seven billion, seven hundred eighty-two million, three hundred twenty-one thousand, two hundred sixteen".