5407778879 has 8 divisors (see below), whose sum is σ = 5697609840. Its totient is φ = 5118469056.

The previous prime is 5407778869. The next prime is 5407778903. The reversal of 5407778879 is 9788777045.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5407778879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5407778869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108884 + ... + 150569.

It is an arithmetic number, because the mean of its divisors is an integer number (712201230).

Almost surely, 2^5407778879 is an apocalyptic number.

5407778879 is a deficient number, since it is larger than the sum of its proper divisors (289830961).

5407778879 is a wasteful number, since it uses less digits than its factorization.

5407778879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260569.

The product of its (nonzero) digits is 27659520, while the sum is 62.

The square root of 5407778879 is about 73537.6018034311. The cubic root of 5407778879 is about 1755.2526676311.

The spelling of 5407778879 in words is "five billion, four hundred seven million, seven hundred seventy-eight thousand, eight hundred seventy-nine".