421400644262 has 16 divisors (see below), whose sum is σ = 681903906432. Its totient is φ = 194155522560.

The previous prime is 421400644261. The next prime is 421400644277. The reversal of 421400644262 is 262446004124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421400644261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14029814 + ... + 14059817.

It is an arithmetic number, because the mean of its divisors is an integer number (42618994152).

Almost surely, 2^421400644262 is an apocalyptic number.

421400644262 is a deficient number, since it is larger than the sum of its proper divisors (260503262170).

421400644262 is a wasteful number, since it uses less digits than its factorization.

421400644262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28090223.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 421400644262 its reverse (262446004124), we get a palindrome (683846648386).

The spelling of 421400644262 in words is "four hundred twenty-one billion, four hundred million, six hundred forty-four thousand, two hundred sixty-two".