71891804260 has 48 divisors (see below), whose sum is σ = 162618688512. Its totient is φ = 26619120000.

The previous prime is 71891804227. The next prime is 71891804323. The reversal of 71891804260 is 6240819817.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 71891804260.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2506491 + ... + 2535010.

It is an arithmetic number, because the mean of its divisors is an integer number (3387889344).

Almost surely, 2^71891804260 is an apocalyptic number.

It is an amenable number.

71891804260 is an abundant number, since it is smaller than the sum of its proper divisors (90726884252).

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

71891804260 is a wasteful number, since it uses less digits than its factorization.

71891804260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041564 (or 5041562 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 71891804260 in words is "seventy-one billion, eight hundred ninety-one million, eight hundred four thousand, two hundred sixty".