71481474044 has 12 divisors (see below), whose sum is σ = 125338344600. Its totient is φ = 35670518448.

The previous prime is 71481474037. The next prime is 71481474049. The reversal of 71481474044 is 44047418417.

It is a super-2 number, since 2×71481474044² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71481473986 and 71481474004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71481474049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17552354 + ... + 17556425.

It is an arithmetic number, because the mean of its divisors is an integer number (10444862050).

Almost surely, 2^71481474044 is an apocalyptic number.

It is an amenable number.

71481474044 is a deficient number, since it is larger than the sum of its proper divisors (53856870556).

71481474044 is a wasteful number, since it uses less digits than its factorization.

71481474044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35109292 (or 35109290 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 44.

The spelling of 71481474044 in words is "seventy-one billion, four hundred eighty-one million, four hundred seventy-four thousand, forty-four".