421352510437 has 2 divisors, whose sum is σ = 421352510438. Its totient is φ = 421352510436.

The previous prime is 421352510401. The next prime is 421352510479. The reversal of 421352510437 is 734015253124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289437544036 + 131914966401 = 537994^2 + 363201^2 .

It is a cyclic number.

It is not a de Polignac number, because 421352510437 - 2³¹ = 419205026789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421352510396 and 421352510405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421352510237) 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 as a sum of consecutive naturals, namely, 210676255218 + 210676255219.

It is an arithmetic number, because the mean of its divisors is an integer number (210676255219).

Almost surely, 2^421352510437 is an apocalyptic number.

It is an amenable number.

421352510437 is a deficient number, since it is larger than the sum of its proper divisors (1).

421352510437 is an equidigital number, since it uses as much as digits as its factorization.

421352510437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 421352510437 in words is "four hundred twenty-one billion, three hundred fifty-two million, five hundred ten thousand, four hundred thirty-seven".