3778447680 has 168 divisors, whose sum is σ = 14852977152. Its totient is φ = 863640576.

The previous prime is 3778447663. The next prime is 3778447691. The reversal of 3778447680 is 867448773.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73552 + ... + 113871.

Almost surely, 2^3778447680 is an apocalyptic number.

3778447680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3778447680 is an abundant number, since it is smaller than the sum of its proper divisors (11074529472).

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

3778447680 is a wasteful number, since it uses less digits than its factorization.

3778447680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187453 (or 187440 counting only the distinct ones).

The product of its (nonzero) digits is 6322176, while the sum is 54.

The square root of 3778447680 is about 61469.0790560587. The cubic root of 3778447680 is about 1557.5349629342.

The spelling of 3778447680 in words is "three billion, seven hundred seventy-eight million, four hundred forty-seven thousand, six hundred eighty".