4268721507 has 16 divisors (see below), whose sum is σ = 6058512000. Its totient is φ = 2665738944.

The previous prime is 4268721491. The next prime is 4268721511. The reversal of 4268721507 is 7051278624.

It is not a de Polignac number, because 4268721507 - 2⁴ = 4268721491 is a prime.

It is a super-3 number, since 3×4268721507³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (4268721517) 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, 415657 + ... + 425802.

It is an arithmetic number, because the mean of its divisors is an integer number (378657000).

Almost surely, 2^4268721507 is an apocalyptic number.

4268721507 is a deficient number, since it is larger than the sum of its proper divisors (1789790493).

4268721507 is a wasteful number, since it uses less digits than its factorization.

4268721507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841570.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 4268721507 is about 65335.4536756270. The cubic root of 4268721507 is about 1622.1808644063.

The spelling of 4268721507 in words is "four billion, two hundred sixty-eight million, seven hundred twenty-one thousand, five hundred seven".