1061787304405 has 16 divisors (see below), whose sum is σ = 1280638195200. Its totient is φ = 845101496448.

The previous prime is 1061787304397. The next prime is 1061787304423. The reversal of 1061787304405 is 5044037871601.

It is a cyclic number.

It is not a de Polignac number, because 1061787304405 - 2³ = 1061787304397 is a prime.

It is a super-2 number, since 2×1061787304405² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18670644 + ... + 18727426.

It is an arithmetic number, because the mean of its divisors is an integer number (80039887200).

Almost surely, 2^{1061787304405} is an apocalyptic number.

It is an amenable number.

1061787304405 is a deficient number, since it is larger than the sum of its proper divisors (218850890795).

1061787304405 is a wasteful number, since it uses less digits than its factorization.

1061787304405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75780.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 1061787304405 in words is "one trillion, sixty-one billion, seven hundred eighty-seven million, three hundred four thousand, four hundred five".