4777721497 has 8 divisors (see below), whose sum is σ = 5078922912. Its totient is φ = 4478760000.

The previous prime is 4777721491. The next prime is 4777721561. The reversal of 4777721497 is 7941277774.

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

It is a cyclic number.

It is not a de Polignac number, because 4777721497 - 2²⁷ = 4643503769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4777721491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555579 + ... + 564112.

It is an arithmetic number, because the mean of its divisors is an integer number (634865364).

Almost surely, 2^4777721497 is an apocalyptic number.

It is an amenable number.

4777721497 is a deficient number, since it is larger than the sum of its proper divisors (301201415).

4777721497 is a wasteful number, since it uses less digits than its factorization.

4777721497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119959.

The product of its digits is 4840416, while the sum is 55.

The square root of 4777721497 is about 69121.0640615435. The cubic root of 4777721497 is about 1684.2515023597.

The spelling of 4777721497 in words is "four billion, seven hundred seventy-seven million, seven hundred twenty-one thousand, four hundred ninety-seven".