464626637561261 has 8 divisors (see below), whose sum is σ = 531002318240640. Its totient is φ = 398251068567408.

The previous prime is 464626637561221. The next prime is 464626637561311. The reversal of 464626637561261 is 162165736626464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 464626637561261 - 2¹⁰ = 464626637560237 is a prime.

It is a super-2 number, since 2×464626637561261² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464626637561201) 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, 18808526 + ... + 35819183.

It is an arithmetic number, because the mean of its divisors is an integer number (66375289780080).

Almost surely, 2^{464626637561261} is an apocalyptic number.

It is an amenable number.

464626637561261 is a deficient number, since it is larger than the sum of its proper divisors (66375680679379).

464626637561261 is a wasteful number, since it uses less digits than its factorization.

464626637561261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55842763.

The product of its digits is 313528320, while the sum is 65.

The spelling of 464626637561261 in words is "four hundred sixty-four trillion, six hundred twenty-six billion, six hundred thirty-seven million, five hundred sixty-one thousand, two hundred sixty-one".