421546377351 has 16 divisors (see below), whose sum is σ = 613668964608. Its totient is φ = 255269904000.

The previous prime is 421546377311. The next prime is 421546377407. The reversal of 421546377351 is 153773645124.

It is a de Polignac number, because none of the positive numbers 2^k-421546377351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421546377351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421546377311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5278491 + ... + 5357756.

It is an arithmetic number, because the mean of its divisors is an integer number (38354310288).

Almost surely, 2^421546377351 is an apocalyptic number.

421546377351 is a deficient number, since it is larger than the sum of its proper divisors (192122587257).

421546377351 is a wasteful number, since it uses less digits than its factorization.

421546377351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10637462.

The product of its digits is 2116800, while the sum is 48.

It can be divided in two parts, 421546 and 377351, that added together give a palindrome (798897).

The spelling of 421546377351 in words is "four hundred twenty-one billion, five hundred forty-six million, three hundred seventy-seven thousand, three hundred fifty-one".