83406688660438 has 32 divisors (see below), whose sum is σ = 147391838334720. Its totient is φ = 34898332006560.

The previous prime is 83406688660387. The next prime is 83406688660501.

83406688660438 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406069720 + ... + 406275067.

It is an arithmetic number, because the mean of its divisors is an integer number (4605994947960).

Almost surely, 2^{83406688660438} is an apocalyptic number.

83406688660438 is a deficient number, since it is larger than the sum of its proper divisors (63985149674282).

83406688660438 is a wasteful number, since it uses less digits than its factorization.

83406688660438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812345172.

The product of its (nonzero) digits is 764411904, while the sum is 70.

The spelling of 83406688660438 in words is "eighty-three trillion, four hundred six billion, six hundred eighty-eight million, six hundred sixty thousand, four hundred thirty-eight".