61087930506 has 24 divisors (see below), whose sum is σ = 132633521280. Its totient is φ = 20320129896.

The previous prime is 61087930487. The next prime is 61087930507. The reversal of 61087930506 is 60503978016.

It is a happy number.

61087930506 is a `hidden beast` number, since 6 + 108 + 7 + 9 + 30 + 506 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61087930507) 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 11 ways as a sum of consecutive naturals, for example, 3533940 + ... + 3551183.

It is an arithmetic number, because the mean of its divisors is an integer number (5526396720).

Almost surely, 2^61087930506 is an apocalyptic number.

61087930506 is an abundant number, since it is smaller than the sum of its proper divisors (71545590774).

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

61087930506 is a wasteful number, since it uses less digits than its factorization.

61087930506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7085610 (or 7085607 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 61087930506 in words is "sixty-one billion, eighty-seven million, nine hundred thirty thousand, five hundred six".