6241451721 has 32 divisors (see below), whose sum is σ = 8831616000. Its totient is φ = 3909850560.

The previous prime is 6241451687. The next prime is 6241451729. The reversal of 6241451721 is 1271541426.

It is not a de Polignac number, because 6241451721 - 2¹⁷ = 6241320649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6241451729) 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 31 ways as a sum of consecutive naturals, for example, 4774750 + ... + 4776056.

It is an arithmetic number, because the mean of its divisors is an integer number (275988000).

Almost surely, 2^6241451721 is an apocalyptic number.

It is an amenable number.

6241451721 is a deficient number, since it is larger than the sum of its proper divisors (2590164279).

6241451721 is a wasteful number, since it uses less digits than its factorization.

6241451721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949.

The product of its digits is 13440, while the sum is 33.

The square root of 6241451721 is about 79002.8589419396. The cubic root of 6241451721 is about 1841.1755760526.

The spelling of 6241451721 in words is "six billion, two hundred forty-one million, four hundred fifty-one thousand, seven hundred twenty-one".