1083015685973 has 32 divisors (see below), whose sum is σ = 1176405884640. Its totient is φ = 991116656640.

The previous prime is 1083015685919. The next prime is 1083015685979. The reversal of 1083015685973 is 3795865103801.

It can be written as a sum of positive squares in 16 ways, for example, as 359396653009 + 723619032964 = 599497^2 + 850658^2 .

It is a cyclic number.

It is not a de Polignac number, because 1083015685973 - 2¹⁶ = 1083015620437 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 (1083015685979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 889905461 + ... + 889906677.

It is an arithmetic number, because the mean of its divisors is an integer number (36762683895).

Almost surely, 2^{1083015685973} is an apocalyptic number.

1083015685973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1083015685973 is a deficient number, since it is larger than the sum of its proper divisors (93390198667).

1083015685973 is a wasteful number, since it uses less digits than its factorization.

1083015685973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537.

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 1083015685973 in words is "one trillion, eighty-three billion, fifteen million, six hundred eighty-five thousand, nine hundred seventy-three".