71041011138 has 12 divisors (see below), whose sum is σ = 153922190838. Its totient is φ = 23680337040.

The previous prime is 71041011137. The next prime is 71041011193. The reversal of 71041011138 is 83111014017.

It can be written as a sum of positive squares in only one way, i.e., 68731535889 + 2309475249 = 262167^2 + 48057^2 .

It is not an unprimeable number, because it can be changed into a prime (71041011137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1973361403 + ... + 1973361438.

Almost surely, 2^71041011138 is an apocalyptic number.

71041011138 is an abundant number, since it is smaller than the sum of its proper divisors (82881179700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71041011138 is a wasteful number, since it uses less digits than its factorization.

71041011138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946722849 (or 3946722846 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

The spelling of 71041011138 in words is "seventy-one billion, forty-one million, eleven thousand, one hundred thirty-eight".