61117308675 has 30 divisors (see below), whose sum is σ = 113210386388. Its totient is φ = 32595896880.

The previous prime is 61117308667. The next prime is 61117308713. The reversal of 61117308675 is 57680371116.

It is not a de Polignac number, because 61117308675 - 2³ = 61117308667 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61117308675.

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 29 ways as a sum of consecutive naturals, for example, 15088669 + ... + 15092718.

Almost surely, 2^61117308675 is an apocalyptic number.

61117308675 is a deficient number, since it is larger than the sum of its proper divisors (52093077713).

61117308675 is a wasteful number, since it uses less digits than its factorization.

61117308675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30181409 (or 30181395 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 61117308675 in words is "sixty-one billion, one hundred seventeen million, three hundred eight thousand, six hundred seventy-five".