61338686088 has 16 divisors (see below), whose sum is σ = 153346715280. Its totient is φ = 20446228688.

The previous prime is 61338686063. The next prime is 61338686089. The reversal of 61338686088 is 88068683316.

It is a happy number.

It is a super-2 number, since 2×61338686088² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61338686089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277889270 + ... + 1277889317.

It is an arithmetic number, because the mean of its divisors is an integer number (9584169705).

Almost surely, 2^61338686088 is an apocalyptic number.

It is an amenable number.

61338686088 is an abundant number, since it is smaller than the sum of its proper divisors (92008029192).

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

61338686088 is a wasteful number, since it uses less digits than its factorization.

61338686088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555778596 (or 2555778592 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 61338686088 in words is "sixty-one billion, three hundred thirty-eight million, six hundred eighty-six thousand, eighty-eight".