78275295069 has 16 divisors (see below), whose sum is σ = 105001277184. Its totient is φ = 51866600000.

The previous prime is 78275295067. The next prime is 78275295073. The reversal of 78275295069 is 96059257287.

It is a cyclic number.

It is not a de Polignac number, because 78275295069 - 2¹ = 78275295067 is a prime.

It is a super-2 number, since 2×78275295069² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78275295067) 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 15 ways as a sum of consecutive naturals, for example, 1900444 + ... + 1941194.

It is an arithmetic number, because the mean of its divisors is an integer number (6562579824).

Almost surely, 2^78275295069 is an apocalyptic number.

It is an amenable number.

78275295069 is a deficient number, since it is larger than the sum of its proper divisors (26725982115).

78275295069 is a wasteful number, since it uses less digits than its factorization.

78275295069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44628.

The product of its (nonzero) digits is 19051200, while the sum is 60.

The spelling of 78275295069 in words is "seventy-eight billion, two hundred seventy-five million, two hundred ninety-five thousand, sixty-nine".