78472876471 has 4 divisors (see below), whose sum is σ = 85606774344. Its totient is φ = 71338978600.

The previous prime is 78472876459. The next prime is 78472876507. The reversal of 78472876471 is 17467827487.

It is a happy number.

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 78472876471 - 2²¹ = 78470779319 is a prime.

It is a super-3 number, since 3×78472876471³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78472876411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566948920 + ... + 3566948941.

It is an arithmetic number, because the mean of its divisors is an integer number (21401693586).

Almost surely, 2^78472876471 is an apocalyptic number.

78472876471 is a deficient number, since it is larger than the sum of its proper divisors (7133897873).

78472876471 is a wasteful number, since it uses less digits than its factorization.

78472876471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7133897872.

The product of its digits is 29503488, while the sum is 61.

The spelling of 78472876471 in words is "seventy-eight billion, four hundred seventy-two million, eight hundred seventy-six thousand, four hundred seventy-one".