5969381738661 has 64 divisors (see below), whose sum is σ = 10047140640000. Its totient is φ = 3469611075840.

The previous prime is 5969381738659. The next prime is 5969381738699. The reversal of 5969381738661 is 1668371839695.

5969381738661 is a `hidden beast` number, since 5 + 96 + 93 + 8 + 17 + 386 + 61 = 666.

It is not a de Polignac number, because 5969381738661 - 2¹ = 5969381738659 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5969381738661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5969381738261) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1042390 + ... + 3609063.

It is an arithmetic number, because the mean of its divisors is an integer number (156986572500).

Almost surely, 2^{5969381738661} is an apocalyptic number.

It is an amenable number.

5969381738661 is a deficient number, since it is larger than the sum of its proper divisors (4077758901339).

5969381738661 is a wasteful number, since it uses less digits than its factorization.

5969381738661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651651 (or 4651645 counting only the distinct ones).

The product of its digits is 352719360, while the sum is 72.

The spelling of 5969381738661 in words is "five trillion, nine hundred sixty-nine billion, three hundred eighty-one million, seven hundred thirty-eight thousand, six hundred sixty-one".