61256244192 has 288 divisors, whose sum is σ = 191285732736. Its totient is φ = 17049584640.

The previous prime is 61256244157. The next prime is 61256244197. The reversal of 61256244192 is 29144265216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61256244197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34277923 + ... + 34279709.

It is an arithmetic number, because the mean of its divisors is an integer number (664186572).

Almost surely, 2^61256244192 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 61256244192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95642866368).

61256244192 is an abundant number, since it is smaller than the sum of its proper divisors (130029488544).

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

61256244192 is a wasteful number, since it uses less digits than its factorization.

61256244192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2062 (or 2043 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The spelling of 61256244192 in words is "sixty-one billion, two hundred fifty-six million, two hundred forty-four thousand, one hundred ninety-two".