1083705994451 has 4 divisors (see below), whose sum is σ = 1083811331400. Its totient is φ = 1083600657504.

The previous prime is 1083705994303. The next prime is 1083705994453. The reversal of 1083705994451 is 1544995073801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1083705994451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1083705994453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52653041 + ... + 52673618.

It is an arithmetic number, because the mean of its divisors is an integer number (270952832850).

Almost surely, 2^{1083705994451} is an apocalyptic number.

1083705994451 is a deficient number, since it is larger than the sum of its proper divisors (105336949).

1083705994451 is a wasteful number, since it uses less digits than its factorization.

1083705994451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105336948.

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

The spelling of 1083705994451 in words is "one trillion, eighty-three billion, seven hundred five million, nine hundred ninety-four thousand, four hundred fifty-one".