1061717779394 has 8 divisors (see below), whose sum is σ = 1676396493840. Its totient is φ = 502918948116.

The previous prime is 1061717779327. The next prime is 1061717779417. The reversal of 1061717779394 is 4939777171601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1061717779394² (a number of 25 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 13969970744 + ... + 13969970819.

It is an arithmetic number, because the mean of its divisors is an integer number (209549561730).

Almost surely, 2^{1061717779394} is an apocalyptic number.

1061717779394 is a deficient number, since it is larger than the sum of its proper divisors (614678714446).

1061717779394 is a wasteful number, since it uses less digits than its factorization.

1061717779394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27939941584.

The product of its (nonzero) digits is 14002632, while the sum is 62.

The spelling of 1061717779394 in words is "one trillion, sixty-one billion, seven hundred seventeen million, seven hundred seventy-nine thousand, three hundred ninety-four".