71900253687 has 8 divisors (see below), whose sum is σ = 95868487936. Its totient is φ = 47932760952.

The previous prime is 71900253641. The next prime is 71900253707. The reversal of 71900253687 is 78635200917.

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

It is not a de Polignac number, because 71900253687 - 2²⁸ = 71631818231 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 (71900253617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106548 + ... + 393894.

It is an arithmetic number, because the mean of its divisors is an integer number (11983560992).

Almost surely, 2^71900253687 is an apocalyptic number.

71900253687 is a deficient number, since it is larger than the sum of its proper divisors (23968234249).

71900253687 is a wasteful number, since it uses less digits than its factorization.

71900253687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370757.

The product of its (nonzero) digits is 635040, while the sum is 48.

The spelling of 71900253687 in words is "seventy-one billion, nine hundred million, two hundred fifty-three thousand, six hundred eighty-seven".