61853840112 has 40 divisors (see below), whose sum is σ = 159872852304. Its totient is φ = 20607138304.

The previous prime is 61853840099. The next prime is 61853840117. The reversal of 61853840112 is 21104835816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61853840117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 244983 + ... + 428630.

Almost surely, 2^61853840112 is an apocalyptic number.

It is an amenable number.

61853840112 is an abundant number, since it is smaller than the sum of its proper divisors (98019012192).

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

61853840112 is a wasteful number, since it uses less digits than its factorization.

61853840112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675537 (or 675531 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 61853840112 in words is "sixty-one billion, eight hundred fifty-three million, eight hundred forty thousand, one hundred twelve".