78530772335 has 4 divisors (see below), whose sum is σ = 94236926808. Its totient is φ = 62824617864.

The previous prime is 78530772319. The next prime is 78530772337. The reversal of 78530772335 is 53327703587.

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 78530772335 - 2⁴ = 78530772319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78530772337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7853077229 + ... + 7853077238.

It is an arithmetic number, because the mean of its divisors is an integer number (23559231702).

Almost surely, 2^78530772335 is an apocalyptic number.

78530772335 is a deficient number, since it is larger than the sum of its proper divisors (15706154473).

78530772335 is a wasteful number, since it uses less digits than its factorization.

78530772335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15706154472.

The product of its (nonzero) digits is 3704400, while the sum is 50.

The spelling of 78530772335 in words is "seventy-eight billion, five hundred thirty million, seven hundred seventy-two thousand, three hundred thirty-five".