78508568473 has 8 divisors (see below), whose sum is σ = 79282071648. Its totient is φ = 77735802144.

The previous prime is 78508568429. The next prime is 78508568507. The reversal of 78508568473 is 37486580587.

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 78508568473 - 2²¹ = 78506471321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78508568773) 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, 31165 + ... + 397477.

It is an arithmetic number, because the mean of its divisors is an integer number (9910258956).

Almost surely, 2^78508568473 is an apocalyptic number.

It is an amenable number.

78508568473 is a deficient number, since it is larger than the sum of its proper divisors (773503175).

78508568473 is a wasteful number, since it uses less digits than its factorization.

78508568473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368423.

The product of its (nonzero) digits is 45158400, while the sum is 61.

The spelling of 78508568473 in words is "seventy-eight billion, five hundred eight million, five hundred sixty-eight thousand, four hundred seventy-three".