80874778543867 has 48 divisors (see below), whose sum is σ = 102694020307200. Its totient is φ = 61873922710080.

The previous prime is 80874778543849. The next prime is 80874778543901. The reversal of 80874778543867 is 76834587747808.

It is not a de Polignac number, because 80874778543867 - 2³⁵ = 80840418805499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80874778543067) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85549609 + ... + 86489797.

It is an arithmetic number, because the mean of its divisors is an integer number (2139458756400).

Almost surely, 2^{80874778543867} is an apocalyptic number.

80874778543867 is a deficient number, since it is larger than the sum of its proper divisors (21819241763333).

80874778543867 is a wasteful number, since it uses less digits than its factorization.

80874778543867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940544 (or 940465 counting only the distinct ones).

The product of its (nonzero) digits is 14161674240, while the sum is 82.

The spelling of 80874778543867 in words is "eighty trillion, eight hundred seventy-four billion, seven hundred seventy-eight million, five hundred forty-three thousand, eight hundred sixty-seven".