71511622050 has 48 divisors (see below), whose sum is σ = 193471447392. Its totient is φ = 17336150400.

The previous prime is 71511622037. The next prime is 71511622073. The reversal of 71511622050 is 5022611517.

It is a super-2 number, since 2×71511622050² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 71511621999 and 71511622017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21668539 + ... + 21671838.

It is an arithmetic number, because the mean of its divisors is an integer number (4030655154).

Almost surely, 2^71511622050 is an apocalyptic number.

71511622050 is an abundant number, since it is smaller than the sum of its proper divisors (121959825342).

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

71511622050 is a wasteful number, since it uses less digits than its factorization.

71511622050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43340403 (or 43340398 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 30.

The spelling of 71511622050 in words is "seventy-one billion, five hundred eleven million, six hundred twenty-two thousand, fifty".