3978540303722 has 16 divisors (see below), whose sum is σ = 5973233671872. Its totient is φ = 1987462582560.

The previous prime is 3978540303671. The next prime is 3978540303791. The reversal of 3978540303722 is 2273030458793.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83319038 + ... + 83366774.

It is an arithmetic number, because the mean of its divisors is an integer number (373327104492).

Almost surely, 2^{3978540303722} is an apocalyptic number.

3978540303722 is a deficient number, since it is larger than the sum of its proper divisors (1994693368150).

3978540303722 is a wasteful number, since it uses less digits than its factorization.

3978540303722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84733.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 3978540303722 in words is "three trillion, nine hundred seventy-eight billion, five hundred forty million, three hundred three thousand, seven hundred twenty-two".