78530807473534 has 16 divisors (see below), whose sum is σ = 126857686153968. Its totient is φ = 36244922942592.

The previous prime is 78530807473529. The next prime is 78530807473541. The reversal of 78530807473534 is 43537470803587.

It is a super-4 number, since 4×78530807473534⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13971429 + ... + 18768655.

It is an arithmetic number, because the mean of its divisors is an integer number (7928605384623).

Almost surely, 2^{78530807473534} is an apocalyptic number.

78530807473534 is a deficient number, since it is larger than the sum of its proper divisors (48326878680434).

78530807473534 is a wasteful number, since it uses less digits than its factorization.

78530807473534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426859.

The product of its (nonzero) digits is 237081600, while the sum is 64.

The spelling of 78530807473534 in words is "seventy-eight trillion, five hundred thirty billion, eight hundred seven million, four hundred seventy-three thousand, five hundred thirty-four".