78467806768771 has 32 divisors (see below), whose sum is σ = 90222062578560. Its totient is φ = 66850406784000.

The previous prime is 78467806768723. The next prime is 78467806768783. The reversal of 78467806768771 is 17786760876487.

It is not a de Polignac number, because 78467806768771 - 2¹³ = 78467806760579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78467806768711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7224725881 + ... + 7224736741.

It is an arithmetic number, because the mean of its divisors is an integer number (2819439455580).

Almost surely, 2^{78467806768771} is an apocalyptic number.

78467806768771 is a deficient number, since it is larger than the sum of its proper divisors (11754255809789).

78467806768771 is a wasteful number, since it uses less digits than its factorization.

78467806768771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15775.

The product of its (nonzero) digits is 7434878976, while the sum is 82.

The spelling of 78467806768771 in words is "seventy-eight trillion, four hundred sixty-seven billion, eight hundred six million, seven hundred sixty-eight thousand, seven hundred seventy-one".