4268532421 has 2 divisors, whose sum is σ = 4268532422. Its totient is φ = 4268532420.

The previous prime is 4268532403. The next prime is 4268532449. The reversal of 4268532421 is 1242358624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2437890625 + 1830641796 = 49375^2 + 42786^2 .

It is a cyclic number.

It is not a de Polignac number, because 4268532421 - 2⁹ = 4268531909 is a prime.

It is a super-3 number, since 3×4268532421³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4268532461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2134266210 + 2134266211.

It is an arithmetic number, because the mean of its divisors is an integer number (2134266211).

Almost surely, 2^4268532421 is an apocalyptic number.

It is an amenable number.

4268532421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4268532421 is an equidigital number, since it uses as much as digits as its factorization.

4268532421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 37.

The square root of 4268532421 is about 65334.0066198301. The cubic root of 4268532421 is about 1622.1569121745.

The spelling of 4268532421 in words is "four billion, two hundred sixty-eight million, five hundred thirty-two thousand, four hundred twenty-one".