61842685308 has 12 divisors (see below), whose sum is σ = 144299599080. Its totient is φ = 20614228432.

The previous prime is 61842685291. The next prime is 61842685381. The reversal of 61842685308 is 80358624816.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×61842685308² (a number of 22 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, 2576778543 + ... + 2576778566.

It is an arithmetic number, because the mean of its divisors is an integer number (12024966590).

Almost surely, 2^61842685308 is an apocalyptic number.

It is an amenable number.

61842685308 is an abundant number, since it is smaller than the sum of its proper divisors (82456913772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61842685308 is a wasteful number, since it uses less digits than its factorization.

61842685308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153557116 (or 5153557114 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 61842685308 in words is "sixty-one billion, eight hundred forty-two million, six hundred eighty-five thousand, three hundred eight".