461537705969 has 4 divisors (see below), whose sum is σ = 466723522980. Its totient is φ = 456351888960.

The previous prime is 461537705947. The next prime is 461537706031. The reversal of 461537705969 is 969507735164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 246671155600 + 214866550369 = 496660^2 + 463537^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-461537705969 is a prime.

It is a super-2 number, since 2×461537705969² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (461537705929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2592908372 + ... + 2592908549.

It is an arithmetic number, because the mean of its divisors is an integer number (116680880745).

Almost surely, 2^461537705969 is an apocalyptic number.

It is an amenable number.

461537705969 is a deficient number, since it is larger than the sum of its proper divisors (5185817011).

461537705969 is an equidigital number, since it uses as much as digits as its factorization.

461537705969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185817010.

The product of its (nonzero) digits is 42865200, while the sum is 62.

The spelling of 461537705969 in words is "four hundred sixty-one billion, five hundred thirty-seven million, seven hundred five thousand, nine hundred sixty-nine".