71975333903 has 4 divisors (see below), whose sum is σ = 78518546088. Its totient is φ = 65432121720.

The previous prime is 71975333897. The next prime is 71975333923. The reversal of 71975333903 is 30933357917.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71975333903 - 2³⁶ = 3255857167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71975333923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3271606076 + ... + 3271606097.

It is an arithmetic number, because the mean of its divisors is an integer number (19629636522).

Almost surely, 2^71975333903 is an apocalyptic number.

71975333903 is a deficient number, since it is larger than the sum of its proper divisors (6543212185).

71975333903 is a wasteful number, since it uses less digits than its factorization.

71975333903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6543212184.

The product of its (nonzero) digits is 1607445, while the sum is 50.

The spelling of 71975333903 in words is "seventy-one billion, nine hundred seventy-five million, three hundred thirty-three thousand, nine hundred three".