4721907505 has 16 divisors (see below), whose sum is σ = 6856686720. Its totient is φ = 3047415552.

The previous prime is 4721907503. The next prime is 4721907563. The reversal of 4721907505 is 5057091274.

It is a cyclic number.

It is not a de Polignac number, because 4721907505 - 2¹ = 4721907503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4721907503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3967395 + ... + 3968584.

It is an arithmetic number, because the mean of its divisors is an integer number (428542920).

Almost surely, 2^4721907505 is an apocalyptic number.

It is an amenable number.

4721907505 is a deficient number, since it is larger than the sum of its proper divisors (2134779215).

4721907505 is a wasteful number, since it uses less digits than its factorization.

4721907505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7936008.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 4721907505 is about 68716.1371513271. The cubic root of 4721907505 is about 1677.6672443405.

Adding to 4721907505 its reverse (5057091274), we get a palindrome (9778998779).

The spelling of 4721907505 in words is "four billion, seven hundred twenty-one million, nine hundred seven thousand, five hundred five".