83766438403637 has 8 divisors (see below), whose sum is σ = 91516549336992. Its totient is φ = 76038824165200.

The previous prime is 83766438403561. The next prime is 83766438403651. The reversal of 83766438403637 is 73630483466738.

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

It is a cyclic number.

It is not a de Polignac number, because 83766438403637 - 2⁸ = 83766438403381 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 (83766438408637) 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, 5624165939 + ... + 5624180832.

It is an arithmetic number, because the mean of its divisors is an integer number (11439568667124).

Almost surely, 2^{83766438403637} is an apocalyptic number.

It is an amenable number.

83766438403637 is a deficient number, since it is larger than the sum of its proper divisors (7750110933355).

83766438403637 is a wasteful number, since it uses less digits than its factorization.

83766438403637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11248347459.

The product of its (nonzero) digits is 877879296, while the sum is 68.

The spelling of 83766438403637 in words is "eighty-three trillion, seven hundred sixty-six billion, four hundred thirty-eight million, four hundred three thousand, six hundred thirty-seven".