3867743780 has 24 divisors (see below), whose sum is σ = 8600042808. Its totient is φ = 1456091648.

The previous prime is 3867743777. The next prime is 3867743807. The reversal of 3867743780 is 873477683.

It can be written as a sum of positive squares in 4 ways, for example, as 722104384 + 3145639396 = 26872^2 + 56086^2 .

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 7 ways as a sum of consecutive naturals, for example, 5687519 + ... + 5688198.

It is an arithmetic number, because the mean of its divisors is an integer number (358335117).

Almost surely, 2^3867743780 is an apocalyptic number.

It is an amenable number.

3867743780 is an abundant number, since it is smaller than the sum of its proper divisors (4732299028).

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

3867743780 is a wasteful number, since it uses less digits than its factorization.

3867743780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11375743 (or 11375741 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 53.

The square root of 3867743780 is about 62191.1873178186. The cubic root of 3867743780 is about 1569.7093028800.

The spelling of 3867743780 in words is "three billion, eight hundred sixty-seven million, seven hundred forty-three thousand, seven hundred eighty".