61730382876 has 12 divisors (see below), whose sum is σ = 144037560072. Its totient is φ = 20576794288.

The previous prime is 61730382851. The next prime is 61730382911. The reversal of 61730382876 is 67828303716.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572099275 + ... + 2572099298.

It is an arithmetic number, because the mean of its divisors is an integer number (12003130006).

Almost surely, 2^61730382876 is an apocalyptic number.

It is an amenable number.

61730382876 is an abundant number, since it is smaller than the sum of its proper divisors (82307177196).

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

61730382876 is a wasteful number, since it uses less digits than its factorization.

61730382876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5144198580 (or 5144198578 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 61730382876 in words is "sixty-one billion, seven hundred thirty million, three hundred eighty-two thousand, eight hundred seventy-six".