420005264650 has 24 divisors (see below), whose sum is σ = 782152221420. Its totient is φ = 167799432960.

The previous prime is 420005264621. The next prime is 420005264671. The reversal of 420005264650 is 56462500024.

It can be written as a sum of positive squares in 6 ways, for example, as 73951907481 + 346053357169 = 271941^2 + 588263^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5024959 + ... + 5107858.

Almost surely, 2^420005264650 is an apocalyptic number.

420005264650 is a deficient number, since it is larger than the sum of its proper divisors (362146956770).

420005264650 is a wasteful number, since it uses less digits than its factorization.

420005264650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133658 (or 10133653 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 420005264650 its reverse (56462500024), we get a palindrome (476467764674).

The spelling of 420005264650 in words is "four hundred twenty billion, five million, two hundred sixty-four thousand, six hundred fifty".