61743137772 has 24 divisors (see below), whose sum is σ = 144076826992. Its totient is φ = 20579688000.

The previous prime is 61743137767. The next prime is 61743137791. The reversal of 61743137772 is 27773134716.

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, 29022 + ... + 352602.

Almost surely, 2^61743137772 is an apocalyptic number.

It is an amenable number.

61743137772 is an abundant number, since it is smaller than the sum of its proper divisors (82333689220).

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

61743137772 is a wasteful number, since it uses less digits than its factorization.

61743137772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339489 (or 339487 counting only the distinct ones).

The product of its digits is 1037232, while the sum is 48.

The spelling of 61743137772 in words is "sixty-one billion, seven hundred forty-three million, one hundred thirty-seven thousand, seven hundred seventy-two".