1083772986505 has 16 divisors (see below), whose sum is σ = 1431312747264. Its totient is φ = 781223322880.

The previous prime is 1083772986493. The next prime is 1083772986587. The reversal of 1083772986505 is 5056892773801.

It is not a de Polignac number, because 1083772986505 - 2⁵ = 1083772986473 is a prime.

It is a Duffinian 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, 87183889 + ... + 87196318.

It is an arithmetic number, because the mean of its divisors is an integer number (89457046704).

Almost surely, 2^{1083772986505} is an apocalyptic number.

It is an amenable number.

1083772986505 is a deficient number, since it is larger than the sum of its proper divisors (347539760759).

1083772986505 is a wasteful number, since it uses less digits than its factorization.

1083772986505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174380336.

The product of its (nonzero) digits is 25401600, while the sum is 61.

The spelling of 1083772986505 in words is "one trillion, eighty-three billion, seven hundred seventy-two million, nine hundred eighty-six thousand, five hundred five".