61028633712 has 40 divisors (see below), whose sum is σ = 157675082256. Its totient is φ = 20340583936.

The previous prime is 61028633689. The next prime is 61028633767. The reversal of 61028633712 is 21733682016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388918 + ... + 522794.

Almost surely, 2^61028633712 is an apocalyptic number.

It is an amenable number.

61028633712 is an abundant number, since it is smaller than the sum of its proper divisors (96646448544).

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

61028633712 is a wasteful number, since it uses less digits than its factorization.

61028633712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143385 (or 143379 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 61028633712 in words is "sixty-one billion, twenty-eight million, six hundred thirty-three thousand, seven hundred twelve".