78650793655 has 8 divisors (see below), whose sum is σ = 107863945632. Its totient is φ = 53931972768.

The previous prime is 78650793643. The next prime is 78650793659. The reversal of 78650793655 is 55639705687.

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 78650793655 - 2¹¹ = 78650791607 is a prime.

It is a super-2 number, since 2×78650793655² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78650793593 and 78650793602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78650793659) 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, 1123582732 + ... + 1123582801.

It is an arithmetic number, because the mean of its divisors is an integer number (13482993204).

Almost surely, 2^78650793655 is an apocalyptic number.

78650793655 is a deficient number, since it is larger than the sum of its proper divisors (29213151977).

78650793655 is a wasteful number, since it uses less digits than its factorization.

78650793655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247165545.

The product of its (nonzero) digits is 47628000, while the sum is 61.

The spelling of 78650793655 in words is "seventy-eight billion, six hundred fifty million, seven hundred ninety-three thousand, six hundred fifty-five".