61683405823942 has 8 divisors (see below), whose sum is σ = 105742981412496. Its totient is φ = 26435745353112.

The previous prime is 61683405823931. The next prime is 61683405823961. The reversal of 61683405823942 is 24932850438616.

It is a happy number.

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

It is a super-2 number, since 2×61683405823942² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2202978779413 + ... + 2202978779440.

It is an arithmetic number, because the mean of its divisors is an integer number (13217872676562).

Almost surely, 2^{61683405823942} is an apocalyptic number.

61683405823942 is a deficient number, since it is larger than the sum of its proper divisors (44059575588554).

61683405823942 is a wasteful number, since it uses less digits than its factorization.

61683405823942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405957558862.

The product of its (nonzero) digits is 59719680, while the sum is 61.

The spelling of 61683405823942 in words is "sixty-one trillion, six hundred eighty-three billion, four hundred five million, eight hundred twenty-three thousand, nine hundred forty-two".