421260542365 has 32 divisors (see below), whose sum is σ = 568673312256. Its totient is φ = 297242077440.

The previous prime is 421260542347. The next prime is 421260542383. The reversal of 421260542365 is 563245062124.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (421260542347) and next prime (421260542383).

It is not a de Polignac number, because 421260542365 - 2¹³ = 421260534173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 1257072 + ... + 1556518.

It is an arithmetic number, because the mean of its divisors is an integer number (17771041008).

Almost surely, 2^421260542365 is an apocalyptic number.

It is an amenable number.

421260542365 is a deficient number, since it is larger than the sum of its proper divisors (147412769891).

421260542365 is a wasteful number, since it uses less digits than its factorization.

421260542365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300429.

The product of its (nonzero) digits is 345600, while the sum is 40.

The spelling of 421260542365 in words is "four hundred twenty-one billion, two hundred sixty million, five hundred forty-two thousand, three hundred sixty-five".