83785688356504 has 8 divisors (see below), whose sum is σ = 157098165668460. Its totient is φ = 41892844178248.

The previous prime is 83785688356483. The next prime is 83785688356511. The reversal of 83785688356504 is 40565388658738.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5236605522274 + ... + 5236605522289.

Almost surely, 2^{83785688356504} is an apocalyptic number.

It is an amenable number.

83785688356504 is a deficient number, since it is larger than the sum of its proper divisors (73312477311956).

83785688356504 is a wasteful number, since it uses less digits than its factorization.

83785688356504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10473211044569 (or 10473211044565 counting only the distinct ones).

The product of its (nonzero) digits is 4644864000, while the sum is 76.

The spelling of 83785688356504 in words is "eighty-three trillion, seven hundred eighty-five billion, six hundred eighty-eight million, three hundred fifty-six thousand, five hundred four".