14378140777 has 32 divisors (see below), whose sum is σ = 19316553984. Its totient is φ = 10335686400.

The previous prime is 14378140771. The next prime is 14378140853. The reversal of 14378140777 is 77704187341.

It is not a de Polignac number, because 14378140777 - 2⁷ = 14378140649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14378140777.

It is not an unprimeable number, because it can be changed into a prime (14378140771) 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, 2236027 + ... + 2242447.

It is an arithmetic number, because the mean of its divisors is an integer number (603642312).

Almost surely, 2^14378140777 is an apocalyptic number.

It is an amenable number.

14378140777 is a deficient number, since it is larger than the sum of its proper divisors (4938413207).

14378140777 is a wasteful number, since it uses less digits than its factorization.

14378140777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8689.

The product of its (nonzero) digits is 921984, while the sum is 49.

The spelling of 14378140777 in words is "fourteen billion, three hundred seventy-eight million, one hundred forty thousand, seven hundred seventy-seven".