61755272171 has 8 divisors (see below), whose sum is σ = 62981895984. Its totient is φ = 60535559520.

The previous prime is 61755272123. The next prime is 61755272179. The reversal of 61755272171 is 17127255716.

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 61755272171 - 2¹⁴ = 61755255787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61755272179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709741 + ... + 1745486.

It is an arithmetic number, because the mean of its divisors is an integer number (7872736998).

Almost surely, 2^61755272171 is an apocalyptic number.

61755272171 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

61755272171 is a deficient number, since it is larger than the sum of its proper divisors (1226623813).

61755272171 is a wasteful number, since it uses less digits than its factorization.

61755272171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455581.

The product of its digits is 205800, while the sum is 44.

The spelling of 61755272171 in words is "sixty-one billion, seven hundred fifty-five million, two hundred seventy-two thousand, one hundred seventy-one".