71763647987487 has 16 divisors (see below), whose sum is σ = 96319023153408. Its totient is φ = 47525355595200.

The previous prime is 71763647987401. The next prime is 71763647987531. The reversal of 71763647987487 is 78478974636717.

It is not a de Polignac number, because 71763647987487 - 2¹⁰ = 71763647986463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71763647987287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171456688 + ... + 171874730.

It is an arithmetic number, because the mean of its divisors is an integer number (6019938947088).

Almost surely, 2^{71763647987487} is an apocalyptic number.

71763647987487 is a deficient number, since it is larger than the sum of its proper divisors (24555375165921).

71763647987487 is a wasteful number, since it uses less digits than its factorization.

71763647987487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797150.

The product of its digits is 16728477696, while the sum is 84.

The spelling of 71763647987487 in words is "seventy-one trillion, seven hundred sixty-three billion, six hundred forty-seven million, nine hundred eighty-seven thousand, four hundred eighty-seven".