78750771267 has 8 divisors (see below), whose sum is σ = 120001175296. Its totient is φ = 45000440712.

The previous prime is 78750771217. The next prime is 78750771269. The reversal of 78750771267 is 76217705787.

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

It is not a de Polignac number, because 78750771267 - 2¹⁶ = 78750705731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78750771269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1875018343 + ... + 1875018384.

It is an arithmetic number, because the mean of its divisors is an integer number (15000146912).

Almost surely, 2^78750771267 is an apocalyptic number.

78750771267 is a deficient number, since it is larger than the sum of its proper divisors (41250404029).

78750771267 is a wasteful number, since it uses less digits than its factorization.

78750771267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750036737.

The product of its (nonzero) digits is 8067360, while the sum is 57.

The spelling of 78750771267 in words is "seventy-eight billion, seven hundred fifty million, seven hundred seventy-one thousand, two hundred sixty-seven".