78463523526071 has 4 divisors (see below), whose sum is σ = 78465281541792. Its totient is φ = 78461765510352.

The previous prime is 78463523526043. The next prime is 78463523526119. The reversal of 78463523526071 is 17062532536487.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78463523526071 - 2²² = 78463519331767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78463523526071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78463423526071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878940911 + ... + 879030176.

It is an arithmetic number, because the mean of its divisors is an integer number (19616320385448).

Almost surely, 2^{78463523526071} is an apocalyptic number.

78463523526071 is a deficient number, since it is larger than the sum of its proper divisors (1758015721).

78463523526071 is a wasteful number, since it uses less digits than its factorization.

78463523526071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758015720.

The product of its (nonzero) digits is 50803200, while the sum is 59.

The spelling of 78463523526071 in words is "seventy-eight trillion, four hundred sixty-three billion, five hundred twenty-three million, five hundred twenty-six thousand, seventy-one".