46509285421 has 2 divisors, whose sum is σ = 46509285422. Its totient is φ = 46509285420.

The previous prime is 46509285401. The next prime is 46509285499. The reversal of 46509285421 is 12458290564.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34510492900 + 11998792521 = 185770^2 + 109539^2 .

It is a cyclic number.

It is not a de Polignac number, because 46509285421 - 2⁷ = 46509285293 is a prime.

It is a super-2 number, since 2×46509285421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46509285401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23254642710 + 23254642711.

It is an arithmetic number, because the mean of its divisors is an integer number (23254642711).

Almost surely, 2^46509285421 is an apocalyptic number.

It is an amenable number.

46509285421 is a deficient number, since it is larger than the sum of its proper divisors (1).

46509285421 is an equidigital number, since it uses as much as digits as its factorization.

46509285421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 46.

The spelling of 46509285421 in words is "forty-six billion, five hundred nine million, two hundred eighty-five thousand, four hundred twenty-one".