61031324727 has 12 divisors (see below), whose sum is σ = 88231018824. Its totient is φ = 40653090960.

The previous prime is 61031324723. The next prime is 61031324749. The reversal of 61031324727 is 72742313016.

61031324727 is a `hidden beast` number, since 610 + 3 + 1 + 32 + 4 + 7 + 2 + 7 = 666.

It is not a de Polignac number, because 61031324727 - 2² = 61031324723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61031324691 and 61031324700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61031324723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2860353 + ... + 2881610.

It is an arithmetic number, because the mean of its divisors is an integer number (7352584902).

Almost surely, 2^61031324727 is an apocalyptic number.

61031324727 is a deficient number, since it is larger than the sum of its proper divisors (27199694097).

61031324727 is a wasteful number, since it uses less digits than its factorization.

61031324727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743150 (or 5743147 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 61031324727 in words is "sixty-one billion, thirty-one million, three hundred twenty-four thousand, seven hundred twenty-seven".