83783551135487 has 16 divisors (see below), whose sum is σ = 98130104396352. Its totient is φ = 70032868097280.

The previous prime is 83783551135469. The next prime is 83783551135511. The reversal of 83783551135487 is 78453115538738.

It is not a de Polignac number, because 83783551135487 - 2²² = 83783546941183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83783551134487) 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, 61895528 + ... + 63234669.

It is an arithmetic number, because the mean of its divisors is an integer number (6133131524772).

Almost surely, 2^{83783551135487} is an apocalyptic number.

83783551135487 is a deficient number, since it is larger than the sum of its proper divisors (14346553260865).

83783551135487 is a wasteful number, since it uses less digits than its factorization.

83783551135487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125132578.

The product of its digits is 338688000, while the sum is 68.

The spelling of 83783551135487 in words is "eighty-three trillion, seven hundred eighty-three billion, five hundred fifty-one million, one hundred thirty-five thousand, four hundred eighty-seven".