78714293649 has 8 divisors (see below), whose sum is σ = 105026884320. Its totient is φ = 52438949376.

The previous prime is 78714293587. The next prime is 78714293687. The reversal of 78714293649 is 94639241787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78714293649 - 2¹⁵ = 78714260881 is a prime.

It is a super-2 number, since 2×78714293649² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78714293592 and 78714293601.

It is not an unprimeable number, because it can be changed into a prime (78714213649) 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 7 ways as a sum of consecutive naturals, for example, 9306667 + ... + 9315120.

It is an arithmetic number, because the mean of its divisors is an integer number (13128360540).

Almost surely, 2^78714293649 is an apocalyptic number.

It is an amenable number.

78714293649 is a deficient number, since it is larger than the sum of its proper divisors (26312590671).

78714293649 is a wasteful number, since it uses less digits than its factorization.

78714293649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18623199.

The product of its digits is 18289152, while the sum is 60.

The spelling of 78714293649 in words is "seventy-eight billion, seven hundred fourteen million, two hundred ninety-three thousand, six hundred forty-nine".