61064504712 has 24 divisors (see below), whose sum is σ = 165383033790. Its totient is φ = 20354834880.

The previous prime is 61064504693. The next prime is 61064504717. The reversal of 61064504712 is 21740546016.

61064504712 is a `hidden beast` number, since 6 + 1 + 0 + 645 + 0 + 4 + 7 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42821680356 + 18242824356 = 206934^2 + 135066^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (61064504717) 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 5 ways as a sum of consecutive naturals, for example, 424058989 + ... + 424059132.

Almost surely, 2^61064504712 is an apocalyptic number.

It is an amenable number.

61064504712 is an abundant number, since it is smaller than the sum of its proper divisors (104318529078).

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

61064504712 is a wasteful number, since it uses less digits than its factorization.

61064504712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848118133 (or 848118126 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 61064504712 in words is "sixty-one billion, sixty-four million, five hundred four thousand, seven hundred twelve".