1914116779 has 4 divisors (see below), whose sum is σ = 1915878784. Its totient is φ = 1912354776.

The previous prime is 1914116777. The next prime is 1914116797. The reversal of 1914116779 is 9776114191.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1914116779 - 2¹ = 1914116777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1914116773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879372 + ... + 881545.

It is an arithmetic number, because the mean of its divisors is an integer number (478969696).

Almost surely, 2^1914116779 is an apocalyptic number.

1914116779 is a deficient number, since it is larger than the sum of its proper divisors (1762005).

1914116779 is a wasteful number, since it uses less digits than its factorization.

1914116779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762004.

The product of its digits is 95256, while the sum is 46.

The square root of 1914116779 is about 43750.6203270308. The cubic root of 1914116779 is about 1241.6222218966.

The spelling of 1914116779 in words is "one billion, nine hundred fourteen million, one hundred sixteen thousand, seven hundred seventy-nine".