78841669047 has 8 divisors (see below), whose sum is σ = 108747129840. Its totient is φ = 50748660480.

The previous prime is 78841669031. The next prime is 78841669117. The reversal of 78841669047 is 74096614887.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78841669047 - 2⁴ = 78841669031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78841669007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453112954 + ... + 453113127.

It is an arithmetic number, because the mean of its divisors is an integer number (13593391230).

Almost surely, 2^78841669047 is an apocalyptic number.

78841669047 is a deficient number, since it is larger than the sum of its proper divisors (29905460793).

78841669047 is a wasteful number, since it uses less digits than its factorization.

78841669047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906226113.

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 78841669047 in words is "seventy-eight billion, eight hundred forty-one million, six hundred sixty-nine thousand, forty-seven".