61327475412839 has 4 divisors (see below), whose sum is σ = 61368717832224. Its totient is φ = 61286232993456.

The previous prime is 61327475412773. The next prime is 61327475412869. The reversal of 61327475412839 is 93821457472316.

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

It is a cyclic number.

It is not a de Polignac number, because 61327475412839 - 2²⁴ = 61327458635623 is a prime.

It is a super-2 number, since 2×61327475412839² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61327475412869) 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, 20621207462 + ... + 20621210435.

It is an arithmetic number, because the mean of its divisors is an integer number (15342179458056).

Almost surely, 2^{61327475412839} is an apocalyptic number.

61327475412839 is a deficient number, since it is larger than the sum of its proper divisors (41242419385).

61327475412839 is a wasteful number, since it uses less digits than its factorization.

61327475412839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41242419384.

The product of its digits is 60963840, while the sum is 62.

The spelling of 61327475412839 in words is "sixty-one trillion, three hundred twenty-seven billion, four hundred seventy-five million, four hundred twelve thousand, eight hundred thirty-nine".