3821151780 has 48 divisors (see below), whose sum is σ = 11888029440. Its totient is φ = 1018973664.

The previous prime is 3821151779. The next prime is 3821151797. The reversal of 3821151780 is 871511283.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3537564 + ... + 3538643.

It is an arithmetic number, because the mean of its divisors is an integer number (247667280).

Almost surely, 2^3821151780 is an apocalyptic number.

3821151780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3821151780 is an abundant number, since it is smaller than the sum of its proper divisors (8066877660).

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

3821151780 is a wasteful number, since it uses less digits than its factorization.

3821151780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7076225 (or 7076217 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 3821151780 is about 61815.4655405911. The cubic root of 3821151780 is about 1563.3807597972.

The spelling of 3821151780 in words is "three billion, eight hundred twenty-one million, one hundred fifty-one thousand, seven hundred eighty".