61000000045 has 16 divisors (see below), whose sum is σ = 76491672192. Its totient is φ = 46611611200.

The previous prime is 61000000037. The next prime is 61000000063. The reversal of 61000000045 is 54000000016.

It is not a de Polignac number, because 61000000045 - 2³ = 61000000037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 60999999965 and 61000000028.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 297727 + ... + 458956.

It is an arithmetic number, because the mean of its divisors is an integer number (4780729512).

Almost surely, 2^61000000045 is an apocalyptic number.

It is an amenable number.

61000000045 is a deficient number, since it is larger than the sum of its proper divisors (15491672147).

61000000045 is a wasteful number, since it uses less digits than its factorization.

61000000045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757412.

The product of its (nonzero) digits is 120, while the sum is 16.

The spelling of 61000000045 in words is "sixty-one billion, forty-five", and thus it is an aban number and an uban number.