61304142336 has 80 divisors (see below), whose sum is σ = 164173920768. Its totient is φ = 20327628800.

The previous prime is 61304142161. The next prime is 61304142359. The reversal of 61304142336 is 63324140316.

It is a junction number, because it is equal to n+sod(n) for n = 61304142297 and 61304142306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188896 + ... + 397856.

Almost surely, 2^61304142336 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 61304142336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82086960384).

61304142336 is an abundant number, since it is smaller than the sum of its proper divisors (102869778432).

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

61304142336 is a wasteful number, since it uses less digits than its factorization.

61304142336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209173 (or 209157 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 61304142336 in words is "sixty-one billion, three hundred four million, one hundred forty-two thousand, three hundred thirty-six".