38966746557 has 8 divisors (see below), whose sum is σ = 52539433920. Its totient is φ = 25685945120.

The previous prime is 38966746547. The next prime is 38966746583. The reversal of 38966746557 is 75564766983.

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

It is a cyclic number.

It is not a de Polignac number, because 38966746557 - 2⁴ = 38966746541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38966746547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72971169 + ... + 72971702.

It is an arithmetic number, because the mean of its divisors is an integer number (6567429240).

Almost surely, 2^38966746557 is an apocalyptic number.

It is an amenable number.

38966746557 is a deficient number, since it is larger than the sum of its proper divisors (13572687363).

38966746557 is a wasteful number, since it uses less digits than its factorization.

38966746557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145942963.

The product of its digits is 228614400, while the sum is 66.

The spelling of 38966746557 in words is "thirty-eight billion, nine hundred sixty-six million, seven hundred forty-six thousand, five hundred fifty-seven".