3977750016 has 120 divisors (see below), whose sum is σ = 12084535320. Its totient is φ = 1256103936.

The previous prime is 3977749991. The next prime is 3977750033. The reversal of 3977750016 is 6100577793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64836 + ... + 110268.

It is an arithmetic number, because the mean of its divisors is an integer number (100704461).

Almost surely, 2^3977750016 is an apocalyptic number.

3977750016 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3977750016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6042267660).

3977750016 is an abundant number, since it is smaller than the sum of its proper divisors (8106785304).

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

3977750016 is a wasteful number, since it uses less digits than its factorization.

3977750016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45476 (or 45457 counting only the distinct ones).

The product of its (nonzero) digits is 277830, while the sum is 45.

The square root of 3977750016 is about 63069.4063393655. The cubic root of 3977750016 is about 1584.4522736677.

The spelling of 3977750016 in words is "three billion, nine hundred seventy-seven million, seven hundred fifty thousand, sixteen".