71683387401687 has 8 divisors (see below), whose sum is σ = 95643720205440. Its totient is φ = 47755989766200.

The previous prime is 71683387401643. The next prime is 71683387401757. The reversal of 71683387401687 is 78610478338617.

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

It is not a de Polignac number, because 71683387401687 - 2⁶ = 71683387401623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71683387400687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8233786987 + ... + 8233795692.

It is an arithmetic number, because the mean of its divisors is an integer number (11955465025680).

Almost surely, 2^{71683387401687} is an apocalyptic number.

71683387401687 is a deficient number, since it is larger than the sum of its proper divisors (23960332803753).

71683387401687 is a wasteful number, since it uses less digits than its factorization.

71683387401687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16467584133.

The product of its (nonzero) digits is 227598336, while the sum is 69.

The spelling of 71683387401687 in words is "seventy-one trillion, six hundred eighty-three billion, three hundred eighty-seven million, four hundred one thousand, six hundred eighty-seven".