61000510000505 has 8 divisors (see below), whose sum is σ = 73212001585152. Its totient is φ = 48792814944048.

The previous prime is 61000510000501. The next prime is 61000510000511. The reversal of 61000510000505 is 50500001500016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61000510000505 - 2² = 61000510000501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61000510000501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949096697 + ... + 949160966.

It is an arithmetic number, because the mean of its divisors is an integer number (9151500198144).

Almost surely, 2^{61000510000505} is an apocalyptic number.

It is an amenable number.

61000510000505 is a deficient number, since it is larger than the sum of its proper divisors (12211491584647).

61000510000505 is a wasteful number, since it uses less digits than its factorization.

61000510000505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898264095.

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 61000510000505 in words is "sixty-one trillion, five hundred ten million, five hundred five", and thus it is an aban number.