61606283779459 has 8 divisors (see below), whose sum is σ = 61681349237760. Its totient is φ = 61531222221000.

The previous prime is 61606283779427. The next prime is 61606283779483. The reversal of 61606283779459 is 95497738260616.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61606283779459 - 2⁵ = 61606283779427 is a prime.

It is a super-2 number, since 2×61606283779459² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61606283779391 and 61606283779400.

It is not an unprimeable number, because it can be changed into a prime (61606283779559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31288284 + ... + 33198934.

It is an arithmetic number, because the mean of its divisors is an integer number (7710168654720).

It is a 1-persistent number, because it is pandigital, but 2⋅61606283779459 = 123212567558918 is not.

Almost surely, 2^{61606283779459} is an apocalyptic number.

61606283779459 is a deficient number, since it is larger than the sum of its proper divisors (75065458301).

61606283779459 is a wasteful number, since it uses less digits than its factorization.

61606283779459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949921.

The product of its (nonzero) digits is 823011840, while the sum is 73.

The spelling of 61606283779459 in words is "sixty-one trillion, six hundred six billion, two hundred eighty-three million, seven hundred seventy-nine thousand, four hundred fifty-nine".