71100074440 has 32 divisors (see below), whose sum is σ = 169385473080. Its totient is φ = 26767086592.

The previous prime is 71100074431. The next prime is 71100074489. The reversal of 71100074440 is 4447000117.

It can be written as a sum of positive squares in 4 ways, for example, as 58719951684 + 12380122756 = 242322^2 + 111266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71100074399 and 71100074408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52278787 + ... + 52280146.

Almost surely, 2^71100074440 is an apocalyptic number.

It is an amenable number.

71100074440 is an abundant number, since it is smaller than the sum of its proper divisors (98285398640).

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

71100074440 is a wasteful number, since it uses less digits than its factorization.

71100074440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104558961 (or 104558957 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

Adding to 71100074440 its reverse (4447000117), we get a palindrome (75547074557).

The spelling of 71100074440 in words is "seventy-one billion, one hundred million, seventy-four thousand, four hundred forty".