78530555351 has 8 divisors (see below), whose sum is σ = 81866414208. Its totient is φ = 75244860000.

The previous prime is 78530555339. The next prime is 78530555381. The reversal of 78530555351 is 15355503587.

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 78530555351 - 2¹⁸ = 78530293207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78530555296 and 78530555305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78530555381) 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, 12537680 + ... + 12543941.

It is an arithmetic number, because the mean of its divisors is an integer number (10233301776).

Almost surely, 2^78530555351 is an apocalyptic number.

78530555351 is a deficient number, since it is larger than the sum of its proper divisors (3335858857).

78530555351 is a wasteful number, since it uses less digits than its factorization.

78530555351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25081753.

The product of its (nonzero) digits is 1575000, while the sum is 47.

The spelling of 78530555351 in words is "seventy-eight billion, five hundred thirty million, five hundred fifty-five thousand, three hundred fifty-one".