61271171075 has 24 divisors (see below), whose sum is σ = 77312082960. Its totient is φ = 48156147200.

The previous prime is 61271171051. The next prime is 61271171099. The reversal of 61271171075 is 57017117216.

It is an interprime number because it is at equal distance from previous prime (61271171051) and next prime (61271171099).

It is a de Polignac number, because none of the positive numbers 2^k-61271171075 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2526407 + ... + 2550543.

It is an arithmetic number, because the mean of its divisors is an integer number (3221336790).

Almost surely, 2^61271171075 is an apocalyptic number.

61271171075 is a deficient number, since it is larger than the sum of its proper divisors (16040911885).

61271171075 is a wasteful number, since it uses less digits than its factorization.

61271171075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25927 (or 25922 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 38.

The spelling of 61271171075 in words is "sixty-one billion, two hundred seventy-one million, one hundred seventy-one thousand, seventy-five".