3881049780 has 24 divisors (see below), whose sum is σ = 10866939552. Its totient is φ = 1034946592.

The previous prime is 3881049737. The next prime is 3881049803. The reversal of 3881049780 is 879401883.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32342022 + ... + 32342141.

It is an arithmetic number, because the mean of its divisors is an integer number (452789148).

Almost surely, 2^3881049780 is an apocalyptic number.

3881049780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3881049780 is an abundant number, since it is smaller than the sum of its proper divisors (6985889772).

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

3881049780 is a wasteful number, since it uses less digits than its factorization.

3881049780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64684175 (or 64684173 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 3881049780 is about 62298.0720407943. The cubic root of 3881049780 is about 1571.5073059881.

The spelling of 3881049780 in words is "three billion, eight hundred eighty-one million, forty-nine thousand, seven hundred eighty".