61803708428 has 144 divisors (see below), whose sum is σ = 139916544768. Its totient is φ = 23614416000.

The previous prime is 61803708427. The next prime is 61803708451. The reversal of 61803708428 is 82480730816.

It is not an unprimeable number, because it can be changed into a prime (61803708427) 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, 75095225 + ... + 75096047.

It is an arithmetic number, because the mean of its divisors is an integer number (971642672).

Almost surely, 2^61803708428 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 61803708428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69958272384).

61803708428 is an abundant number, since it is smaller than the sum of its proper divisors (78112836340).

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

61803708428 is a wasteful number, since it uses less digits than its factorization.

61803708428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484 (or 1475 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 61803708428 in words is "sixty-one billion, eight hundred three million, seven hundred eight thousand, four hundred twenty-eight".