464222051521 has 16 divisors (see below), whose sum is σ = 493289240400. Its totient is φ = 436029447168.

The previous prime is 464222051519. The next prime is 464222051533. The reversal of 464222051521 is 125150222464.

It can be written as a sum of positive squares in 8 ways, for example, as 427000896 + 463795050625 = 20664^2 + 681025^2 .

It is a cyclic number.

It is not a de Polignac number, because 464222051521 - 2¹ = 464222051519 is a prime.

It is a super-2 number, since 2×464222051521² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (464222057521) 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, 7257045 + ... + 7320733.

It is an arithmetic number, because the mean of its divisors is an integer number (30830577525).

Almost surely, 2^464222051521 is an apocalyptic number.

It is an amenable number.

464222051521 is a deficient number, since it is larger than the sum of its proper divisors (29067188879).

464222051521 is a wasteful number, since it uses less digits than its factorization.

464222051521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70548.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 464222051521 its reverse (125150222464), we get a palindrome (589372273985).

The spelling of 464222051521 in words is "four hundred sixty-four billion, two hundred twenty-two million, fifty-one thousand, five hundred twenty-one".