36561421730 has 16 divisors (see below), whose sum is σ = 67210784640. Its totient is φ = 14313407472.

The previous prime is 36561421679. The next prime is 36561421747. The reversal of 36561421730 is 3712416563.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38894660 + ... + 38895599.

It is an arithmetic number, because the mean of its divisors is an integer number (4200674040).

Almost surely, 2^36561421730 is an apocalyptic number.

36561421730 is a deficient number, since it is larger than the sum of its proper divisors (30649362910).

36561421730 is a wasteful number, since it uses less digits than its factorization.

36561421730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77790313.

The product of its (nonzero) digits is 90720, while the sum is 38.

The spelling of 36561421730 in words is "thirty-six billion, five hundred sixty-one million, four hundred twenty-one thousand, seven hundred thirty".