61477506535136 has 24 divisors (see below), whose sum is σ = 121035173442120. Its totient is φ = 30738414867328.

The previous prime is 61477506535051. The next prime is 61477506535139. The reversal of 61477506535136 is 63153560577416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61477506535139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7610066 + ... + 13448721.

It is an arithmetic number, because the mean of its divisors is an integer number (5043132226755).

Almost surely, 2^{61477506535136} is an apocalyptic number.

It is an amenable number.

61477506535136 is a deficient number, since it is larger than the sum of its proper divisors (59557666906984).

61477506535136 is a wasteful number, since it uses less digits than its factorization.

61477506535136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21150026 (or 21150018 counting only the distinct ones).

The product of its (nonzero) digits is 47628000, while the sum is 59.

The spelling of 61477506535136 in words is "sixty-one trillion, four hundred seventy-seven billion, five hundred six million, five hundred thirty-five thousand, one hundred thirty-six".