4247778723 has 8 divisors (see below), whose sum is σ = 5715666000. Its totient is φ = 2805871968.

The previous prime is 4247778709. The next prime is 4247778793. The reversal of 4247778723 is 3278777424.

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

It is not a de Polignac number, because 4247778723 - 2⁴ = 4247778707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4247778793) 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, 6494748 + ... + 6495401.

It is an arithmetic number, because the mean of its divisors is an integer number (714458250).

Almost surely, 2^4247778723 is an apocalyptic number.

4247778723 is a deficient number, since it is larger than the sum of its proper divisors (1467887277).

4247778723 is a wasteful number, since it uses less digits than its factorization.

4247778723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12990261.

The product of its digits is 3687936, while the sum is 51.

The square root of 4247778723 is about 65174.9854085139. The cubic root of 4247778723 is about 1619.5236524336.

The spelling of 4247778723 in words is "four billion, two hundred forty-seven million, seven hundred seventy-eight thousand, seven hundred twenty-three".