61765412471 has 4 divisors (see below), whose sum is σ = 70589042832. Its totient is φ = 52941782112.

The previous prime is 61765412459. The next prime is 61765412483. The reversal of 61765412471 is 17421456716.

61765412471 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (61765412459) and next prime (61765412483).

It is a cyclic number.

It is not a de Polignac number, because 61765412471 - 2³⁴ = 44585543287 is a prime.

It is a super-3 number, since 3×61765412471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61765412411) 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, 4411815170 + ... + 4411815183.

It is an arithmetic number, because the mean of its divisors is an integer number (17647260708).

Almost surely, 2^61765412471 is an apocalyptic number.

61765412471 is a deficient number, since it is larger than the sum of its proper divisors (8823630361).

61765412471 is an equidigital number, since it uses as much as digits as its factorization.

61765412471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8823630360.

The product of its digits is 282240, while the sum is 44.

The spelling of 61765412471 in words is "sixty-one billion, seven hundred sixty-five million, four hundred twelve thousand, four hundred seventy-one".