61711275741 has 4 divisors (see below), whose sum is σ = 82281700992. Its totient is φ = 41140850492.

The previous prime is 61711275733. The next prime is 61711275763. The reversal of 61711275741 is 14757211716.

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 61711275741 - 2³ = 61711275733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61711275693 and 61711275702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61711275341) 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, 10285212621 + ... + 10285212626.

It is an arithmetic number, because the mean of its divisors is an integer number (20570425248).

Almost surely, 2^61711275741 is an apocalyptic number.

It is an amenable number.

61711275741 is a deficient number, since it is larger than the sum of its proper divisors (20570425251).

61711275741 is a wasteful number, since it uses less digits than its factorization.

61711275741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20570425250.

The product of its digits is 82320, while the sum is 42.

The spelling of 61711275741 in words is "sixty-one billion, seven hundred eleven million, two hundred seventy-five thousand, seven hundred forty-one".