71347250856 has 384 divisors, whose sum is σ = 218424729600. Its totient is φ = 19348116480.

The previous prime is 71347250839. The next prime is 71347250881. The reversal of 71347250856 is 65805274317.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 373545721 + ... + 373545911.

It is an arithmetic number, because the mean of its divisors is an integer number (568814400).

Almost surely, 2^71347250856 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 71347250856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109212364800).

71347250856 is an abundant number, since it is smaller than the sum of its proper divisors (147077478744).

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

71347250856 is a wasteful number, since it uses less digits than its factorization.

71347250856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 48.

The spelling of 71347250856 in words is "seventy-one billion, three hundred forty-seven million, two hundred fifty thousand, eight hundred fifty-six".