78949288471 has 8 divisors (see below), whose sum is σ = 85785305600. Its totient is φ = 72381350520.

The previous prime is 78949288427. The next prime is 78949288477. The reversal of 78949288471 is 17488294987.

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

It is a cyclic number.

It is not a de Polignac number, because 78949288471 - 2¹⁹ = 78948764183 is a prime.

It is a super-3 number, since 3×78949288471³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78949288397 and 78949288406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78949288477) 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, 67019181 + ... + 67020358.

It is an arithmetic number, because the mean of its divisors is an integer number (10723163200).

Almost surely, 2^78949288471 is an apocalyptic number.

78949288471 is a deficient number, since it is larger than the sum of its proper divisors (6836017129).

78949288471 is a wasteful number, since it uses less digits than its factorization.

78949288471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134039589.

The product of its digits is 65028096, while the sum is 67.

The spelling of 78949288471 in words is "seventy-eight billion, nine hundred forty-nine million, two hundred eighty-eight thousand, four hundred seventy-one".