613761277461 has 4 divisors (see below), whose sum is σ = 818348369952. Its totient is φ = 409174184972.

The previous prime is 613761277457. The next prime is 613761277513. The reversal of 613761277461 is 164772167316.

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 613761277461 - 2² = 613761277457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613761277411) 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, 102293546241 + ... + 102293546246.

It is an arithmetic number, because the mean of its divisors is an integer number (204587092488).

Almost surely, 2^613761277461 is an apocalyptic number.

It is an amenable number.

613761277461 is a deficient number, since it is larger than the sum of its proper divisors (204587092491).

613761277461 is a wasteful number, since it uses less digits than its factorization.

613761277461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204587092490.

The product of its digits is 1778112, while the sum is 51.

The spelling of 613761277461 in words is "six hundred thirteen billion, seven hundred sixty-one million, two hundred seventy-seven thousand, four hundred sixty-one".