71182472157 has 12 divisors (see below), whose sum is σ = 108230659680. Its totient is φ = 44957350728.

The previous prime is 71182472077. The next prime is 71182472159. The reversal of 71182472157 is 75127428117.

It is a happy number.

It is not a de Polignac number, because 71182472157 - 2¹⁰ = 71182471133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71182472159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 208135713 + ... + 208136054.

It is an arithmetic number, because the mean of its divisors is an integer number (9019221640).

Almost surely, 2^71182472157 is an apocalyptic number.

It is an amenable number.

71182472157 is a deficient number, since it is larger than the sum of its proper divisors (37048187523).

71182472157 is a wasteful number, since it uses less digits than its factorization.

71182472157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416271792 (or 416271789 counting only the distinct ones).

The product of its digits is 219520, while the sum is 45.

The spelling of 71182472157 in words is "seventy-one billion, one hundred eighty-two million, four hundred seventy-two thousand, one hundred fifty-seven".