3750381978 has 32 divisors (see below), whose sum is σ = 8945012736. Its totient is φ = 1024948848.

The previous prime is 3750381977. The next prime is 3750382003. The reversal of 3750381978 is 8791830573.

It is a self number, because there is not a number n which added to its sum of digits gives 3750381978.

It is not an unprimeable number, because it can be changed into a prime (3750381977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1940226 + ... + 1942157.

It is an arithmetic number, because the mean of its divisors is an integer number (279531648).

Almost surely, 2^3750381978 is an apocalyptic number.

3750381978 is an abundant number, since it is smaller than the sum of its proper divisors (5194630758).

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

3750381978 is a wasteful number, since it uses less digits than its factorization.

3750381978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882418.

The product of its (nonzero) digits is 1270080, while the sum is 51.

The square root of 3750381978 is about 61240.3623274716. The cubic root of 3750381978 is about 1553.6690020508.

The spelling of 3750381978 in words is "three billion, seven hundred fifty million, three hundred eighty-one thousand, nine hundred seventy-eight".