421277263461 has 6 divisors (see below), whose sum is σ = 608511602790. Its totient is φ = 280851508968.

The previous prime is 421277263391. The next prime is 421277263499. The reversal of 421277263461 is 164362772124.

421277263461 is a `hidden beast` number, since 4 + 2 + 1 + 2 + 7 + 7 + 2 + 634 + 6 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 416791612836 + 4485650625 = 645594^2 + 66975^2 .

It is not a de Polignac number, because 421277263461 - 2¹¹ = 421277261413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421277263261) 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 in 5 ways as a sum of consecutive naturals, for example, 23404292406 + ... + 23404292423.

It is an arithmetic number, because the mean of its divisors is an integer number (101418600465).

Almost surely, 2^421277263461 is an apocalyptic number.

It is an amenable number.

421277263461 is a deficient number, since it is larger than the sum of its proper divisors (187234339329).

421277263461 is a wasteful number, since it uses less digits than its factorization.

421277263461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46808584835 (or 46808584832 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The spelling of 421277263461 in words is "four hundred twenty-one billion, two hundred seventy-seven million, two hundred sixty-three thousand, four hundred sixty-one".