428010452381 has 2 divisors, whose sum is σ = 428010452382. Its totient is φ = 428010452380.

The previous prime is 428010452377. The next prime is 428010452413. The reversal of 428010452381 is 183254010824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308685804025 + 119324648356 = 555595^2 + 345434^2 .

It is a cyclic number.

It is not a de Polignac number, because 428010452381 - 2² = 428010452377 is a prime.

It is a super-2 number, since 2×428010452381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (428010452321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214005226190 + 214005226191.

It is an arithmetic number, because the mean of its divisors is an integer number (214005226191).

Almost surely, 2^428010452381 is an apocalyptic number.

It is an amenable number.

428010452381 is a deficient number, since it is larger than the sum of its proper divisors (1).

428010452381 is an equidigital number, since it uses as much as digits as its factorization.

428010452381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61440, while the sum is 38.

The spelling of 428010452381 in words is "four hundred twenty-eight billion, ten million, four hundred fifty-two thousand, three hundred eighty-one".