71554825460 has 24 divisors (see below), whose sum is σ = 159104259720. Its totient is φ = 26938287104.

The previous prime is 71554825457. The next prime is 71554825553. The reversal of 71554825460 is 6452845517.

It can be written as a sum of positive squares in 4 ways, for example, as 9546853264 + 62007972196 = 97708^2 + 249014^2 .

It is a super-2 number, since 2×71554825460² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105227345 + ... + 105228024.

It is an arithmetic number, because the mean of its divisors is an integer number (6629344155).

Almost surely, 2^71554825460 is an apocalyptic number.

It is an amenable number.

71554825460 is an abundant number, since it is smaller than the sum of its proper divisors (87549434260).

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

71554825460 is a wasteful number, since it uses less digits than its factorization.

71554825460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210455395 (or 210455393 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 47.

The spelling of 71554825460 in words is "seventy-one billion, five hundred fifty-four million, eight hundred twenty-five thousand, four hundred sixty".