3777381343808 has 28 divisors (see below), whose sum is σ = 7678564063212. Its totient is φ = 1842625044480.

The previous prime is 3777381343793. The next prime is 3777381343823. The reversal of 3777381343808 is 8083431837773.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3777381343793) and next prime (3777381343823).

It can be written as a sum of positive squares in 2 ways, for example, as 65470480384 + 3711910863424 = 255872^2 + 1926632^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719772785 + ... + 719778032.

It is an arithmetic number, because the mean of its divisors is an integer number (274234430829).

Almost surely, 2^{3777381343808} is an apocalyptic number.

It is an amenable number.

3777381343808 is an abundant number, since it is smaller than the sum of its proper divisors (3901182719404).

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

3777381343808 is a wasteful number, since it uses less digits than its factorization.

3777381343808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439550870 (or 1439550860 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 62.

The spelling of 3777381343808 in words is "three trillion, seven hundred seventy-seven billion, three hundred eighty-one million, three hundred forty-three thousand, eight hundred eight".