61843741038 has 48 divisors (see below), whose sum is σ = 139875480576. Its totient is φ = 19710559440.

The previous prime is 61843741021. The next prime is 61843741073. The reversal of 61843741038 is 83014734816.

It is a junction number, because it is equal to n+sod(n) for n = 61843740984 and 61843741002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1077831 + ... + 1133757.

It is an arithmetic number, because the mean of its divisors is an integer number (2914072512).

Almost surely, 2^61843741038 is an apocalyptic number.

61843741038 is an abundant number, since it is smaller than the sum of its proper divisors (78031739538).

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

61843741038 is a wasteful number, since it uses less digits than its factorization.

61843741038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58629 (or 58626 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 61843741038 in words is "sixty-one billion, eight hundred forty-three million, seven hundred forty-one thousand, thirty-eight".