78214073519 has 4 divisors (see below), whose sum is σ = 78230945544. Its totient is φ = 78197201496.

The previous prime is 78214073513. The next prime is 78214073533. The reversal of 78214073519 is 91537041287.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78214073519 - 2⁴ = 78214073503 is a prime.

It is a super-2 number, since 2×78214073519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78214073513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8429057 + ... + 8438330.

It is an arithmetic number, because the mean of its divisors is an integer number (19557736386).

Almost surely, 2^78214073519 is an apocalyptic number.

78214073519 is a deficient number, since it is larger than the sum of its proper divisors (16872025).

78214073519 is a wasteful number, since it uses less digits than its factorization.

78214073519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16872024.

The product of its (nonzero) digits is 423360, while the sum is 47.

The spelling of 78214073519 in words is "seventy-eight billion, two hundred fourteen million, seventy-three thousand, five hundred nineteen".