78353628471 has 6 divisors (see below), whose sum is σ = 113177463360. Its totient is φ = 52235752308.

The previous prime is 78353628461. The next prime is 78353628527. The reversal of 78353628471 is 17482635387.

It is a happy number.

78353628471 is a `hidden beast` number, since 7 + 8 + 3 + 5 + 3 + 628 + 4 + 7 + 1 = 666.

It is not a de Polignac number, because 78353628471 - 2⁹ = 78353627959 is a prime.

It is a super-3 number, since 3×78353628471³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78353628461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4352979351 + ... + 4352979368.

It is an arithmetic number, because the mean of its divisors is an integer number (18862910560).

Almost surely, 2^78353628471 is an apocalyptic number.

78353628471 is a deficient number, since it is larger than the sum of its proper divisors (34823834889).

78353628471 is a wasteful number, since it uses less digits than its factorization.

78353628471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8705958725 (or 8705958722 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 78353628471 in words is "seventy-eight billion, three hundred fifty-three million, six hundred twenty-eight thousand, four hundred seventy-one".