52778540067 has 32 divisors (see below), whose sum is σ = 78429855744. Its totient is φ = 31295364000.

The previous prime is 52778540063. The next prime is 52778540069. The reversal of 52778540067 is 76004587725.

It is not a de Polignac number, because 52778540067 - 2² = 52778540063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52778540063) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7079692 + ... + 7087142.

It is an arithmetic number, because the mean of its divisors is an integer number (2450932992).

Almost surely, 2^52778540067 is an apocalyptic number.

52778540067 is a deficient number, since it is larger than the sum of its proper divisors (25651315677).

52778540067 is a wasteful number, since it uses less digits than its factorization.

52778540067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12079.

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 52778540067 in words is "fifty-two billion, seven hundred seventy-eight million, five hundred forty thousand, sixty-seven".