61285782252 has 24 divisors (see below), whose sum is σ = 143131021936. Its totient is φ = 20409899328.

The previous prime is 61285782197. The next prime is 61285782287. The reversal of 61285782252 is 25228758216.

It is a happy number.

It is an unprimeable number.

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, 2323183 + ... + 2349414.

Almost surely, 2^61285782252 is an apocalyptic number.

It is an amenable number.

61285782252 is an abundant number, since it is smaller than the sum of its proper divisors (81845239684).

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

61285782252 is a wasteful number, since it uses less digits than its factorization.

61285782252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673697 (or 4673695 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The spelling of 61285782252 in words is "sixty-one billion, two hundred eighty-five million, seven hundred eighty-two thousand, two hundred fifty-two".