38717231342661 has 12 divisors (see below), whose sum is σ = 55924982868300. Its totient is φ = 25811444568960.

The previous prime is 38717231342651. The next prime is 38717231342717. The reversal of 38717231342661 is 16624313271783.

38717231342661 is a `hidden beast` number, since 3 + 8 + 7 + 1 + 7 + 231 + 342 + 6 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21785602925025 + 16931628417636 = 4667505^2 + 4114806^2 .

It is not a de Polignac number, because 38717231342661 - 2¹⁹ = 38717230818373 is a prime.

It is a super-2 number, since 2×38717231342661² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38717231342598 and 38717231342607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38717231342641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2700765 + ... + 9204813.

It is an arithmetic number, because the mean of its divisors is an integer number (4660415239025).

Almost surely, 2^{38717231342661} is an apocalyptic number.

It is an amenable number.

38717231342661 is a deficient number, since it is larger than the sum of its proper divisors (17207751525639).

38717231342661 is a wasteful number, since it uses less digits than its factorization.

38717231342661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165476 (or 7165473 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 38717231342661 in words is "thirty-eight trillion, seven hundred seventeen billion, two hundred thirty-one million, three hundred forty-two thousand, six hundred sixty-one".