4278013979 has 4 divisors (see below), whose sum is σ = 4299729984. Its totient is φ = 4256297976.

The previous prime is 4278013939. The next prime is 4278013991. The reversal of 4278013979 is 9793108724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4278013979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4278013939) 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, 10857707 + ... + 10858100.

It is an arithmetic number, because the mean of its divisors is an integer number (1074932496).

Almost surely, 2^4278013979 is an apocalyptic number.

4278013979 is a deficient number, since it is larger than the sum of its proper divisors (21716005).

4278013979 is a wasteful number, since it uses less digits than its factorization.

4278013979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21716004.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 4278013979 is about 65406.5285655798. The cubic root of 4278013979 is about 1623.3571061549.

The spelling of 4278013979 in words is "four billion, two hundred seventy-eight million, thirteen thousand, nine hundred seventy-nine".