78019351422271 has 6 divisors (see below), whose sum is σ = 90757204715760. Its totient is φ = 66873729790476.

The previous prime is 78019351422191. The next prime is 78019351422319. The reversal of 78019351422271 is 17222415391087.

It is not a de Polignac number, because 78019351422271 - 2²³ = 78019343033663 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 (78019351423271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 796115830791 + ... + 796115830888.

It is an arithmetic number, because the mean of its divisors is an integer number (15126200785960).

Almost surely, 2^{78019351422271} is an apocalyptic number.

78019351422271 is a deficient number, since it is larger than the sum of its proper divisors (12737853293489).

78019351422271 is a wasteful number, since it uses less digits than its factorization.

78019351422271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592231661693 (or 1592231661686 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 78019351422271 in words is "seventy-eight trillion, nineteen billion, three hundred fifty-one million, four hundred twenty-two thousand, two hundred seventy-one".