8378031543079 has 32 divisors (see below), whose sum is σ = 9807913636416. Its totient is φ = 7072083640320.

The previous prime is 8378031543073. The next prime is 8378031543097. The reversal of 8378031543079 is 9703451308738.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 8378031543079 - 2³ = 8378031543071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8378031543071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5021547 + ... + 6478579.

It is an arithmetic number, because the mean of its divisors is an integer number (306497301138).

Almost surely, 2^{8378031543079} is an apocalyptic number.

8378031543079 is a deficient number, since it is larger than the sum of its proper divisors (1429882093337).

8378031543079 is a wasteful number, since it uses less digits than its factorization.

8378031543079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457475.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 8378031543079 in words is "eight trillion, three hundred seventy-eight billion, thirty-one million, five hundred forty-three thousand, seventy-nine".