71227373880 has 256 divisors, whose sum is σ = 235703623680. Its totient is φ = 17109633024.

The previous prime is 71227373863. The next prime is 71227373909. The reversal of 71227373880 is 8837372217.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29106817 + ... + 29109263.

It is an arithmetic number, because the mean of its divisors is an integer number (920717280).

Almost surely, 2^71227373880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71227373880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117851811840).

71227373880 is an abundant number, since it is smaller than the sum of its proper divisors (164476249800).

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

71227373880 is a wasteful number, since it uses less digits than its factorization.

71227373880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918 (or 2914 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 71227373880 in words is "seventy-one billion, two hundred twenty-seven million, three hundred seventy-three thousand, eight hundred eighty".