61650234536 has 16 divisors (see below), whose sum is σ = 126102752640. Its totient is φ = 28022833840.

The previous prime is 61650234509. The next prime is 61650234539. The reversal of 61650234536 is 63543205616.

It is a junction number, because it is equal to n+sod(n) for n = 61650234493 and 61650234502.

It is not an unprimeable number, because it can be changed into a prime (61650234539) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 350285336 + ... + 350285511.

It is an arithmetic number, because the mean of its divisors is an integer number (7881422040).

Almost surely, 2^61650234536 is an apocalyptic number.

It is an amenable number.

61650234536 is an abundant number, since it is smaller than the sum of its proper divisors (64452518104).

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

61650234536 is a wasteful number, since it uses less digits than its factorization.

61650234536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700570864 (or 700570860 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 61650234536 in words is "sixty-one billion, six hundred fifty million, two hundred thirty-four thousand, five hundred thirty-six".