461738640013 has 4 divisors (see below), whose sum is σ = 527701302880. Its totient is φ = 395775977148.

The previous prime is 461738639981. The next prime is 461738640037. The reversal of 461738640013 is 310046837164.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 461738640013 - 2⁵ = 461738639981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461738644013) 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, 32981331423 + ... + 32981331436.

It is an arithmetic number, because the mean of its divisors is an integer number (131925325720).

Almost surely, 2^461738640013 is an apocalyptic number.

It is an amenable number.

461738640013 is a deficient number, since it is larger than the sum of its proper divisors (65962662867).

461738640013 is an equidigital number, since it uses as much as digits as its factorization.

461738640013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65962662866.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 461738640013 in words is "four hundred sixty-one billion, seven hundred thirty-eight million, six hundred forty thousand, thirteen".