61925178072 has 96 divisors (see below), whose sum is σ = 161184890880. Its totient is φ = 19824362880.

The previous prime is 61925178071. The next prime is 61925178083. The reversal of 61925178072 is 27087152916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61925178071) 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 23 ways as a sum of consecutive naturals, for example, 3847113 + ... + 3863175.

It is an arithmetic number, because the mean of its divisors is an integer number (1679009280).

Almost surely, 2^61925178072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61925178072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80592445440).

61925178072 is an abundant number, since it is smaller than the sum of its proper divisors (99259712808).

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

61925178072 is a wasteful number, since it uses less digits than its factorization.

61925178072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16321 (or 16288 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 48.

The spelling of 61925178072 in words is "sixty-one billion, nine hundred twenty-five million, one hundred seventy-eight thousand, seventy-two".