71049190956 has 24 divisors (see below), whose sum is σ = 165805463040. Its totient is φ = 23679632592.

The previous prime is 71049190943. The next prime is 71049190991. The reversal of 71049190956 is 65909194017.

It is a junction number, because it is equal to n+sod(n) for n = 71049190899 and 71049190908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341896 + ... + 508911.

It is an arithmetic number, because the mean of its divisors is an integer number (6908560960).

Almost surely, 2^71049190956 is an apocalyptic number.

It is an amenable number.

71049190956 is an abundant number, since it is smaller than the sum of its proper divisors (94756272084).

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

71049190956 is a wasteful number, since it uses less digits than its factorization.

71049190956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857773 (or 857771 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 51.

The spelling of 71049190956 in words is "seventy-one billion, forty-nine million, one hundred ninety thousand, nine hundred fifty-six".