3777981912 has 40 divisors (see below), whose sum is σ = 10581849300. Its totient is φ = 1259327088.

The previous prime is 3777981877. The next prime is 3777981913. The reversal of 3777981912 is 2191897773.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3777981913) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2914462 + ... + 2915757.

Almost surely, 2^3777981912 is an apocalyptic number.

It is an amenable number.

3777981912 is an abundant number, since it is smaller than the sum of its proper divisors (6803867388).

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

3777981912 is a wasteful number, since it uses less digits than its factorization.

3777981912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830237 (or 5830224 counting only the distinct ones).

The product of its digits is 1333584, while the sum is 54.

The square root of 3777981912 is about 61465.2903027392. The cubic root of 3777981912 is about 1557.4709613639.

The spelling of 3777981912 in words is "three billion, seven hundred seventy-seven million, nine hundred eighty-one thousand, nine hundred twelve".