71251308194 has 8 divisors (see below), whose sum is σ = 116593049808. Its totient is φ = 32386958260.

The previous prime is 71251308137. The next prime is 71251308199. The reversal of 71251308194 is 49180315217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (71251308199) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1619347892 + ... + 1619347935.

It is an arithmetic number, because the mean of its divisors is an integer number (14574131226).

Almost surely, 2^71251308194 is an apocalyptic number.

71251308194 is a deficient number, since it is larger than the sum of its proper divisors (45341741614).

71251308194 is a wasteful number, since it uses less digits than its factorization.

71251308194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238695840.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 71251308194 in words is "seventy-one billion, two hundred fifty-one million, three hundred eight thousand, one hundred ninety-four".