4629752721 has 20 divisors (see below), whose sum is σ = 7544783664. Its totient is φ = 2805910200.

The previous prime is 4629752717. The next prime is 4629752737. The reversal of 4629752721 is 1272579264.

It is not a de Polignac number, because 4629752721 - 2² = 4629752717 is a prime.

It is a super-2 number, since 2×4629752721² = 42869220515213807682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4629752921) 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 19 ways as a sum of consecutive naturals, for example, 2597175 + ... + 2598956.

Almost surely, 2^4629752721 is an apocalyptic number.

It is an amenable number.

4629752721 is a deficient number, since it is larger than the sum of its proper divisors (2915030943).

4629752721 is a wasteful number, since it uses less digits than its factorization.

4629752721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5196154 (or 5196145 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 4629752721 is about 68042.2862711123. The cubic root of 4629752721 is about 1666.6814375002.

The spelling of 4629752721 in words is "four billion, six hundred twenty-nine million, seven hundred fifty-two thousand, seven hundred twenty-one".