38851786950623 has 2 divisors, whose sum is σ = 38851786950624. Its totient is φ = 38851786950622.

The previous prime is 38851786950521. The next prime is 38851786950637. The reversal of 38851786950623 is 32605968715883.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 38851786950623 - 2⁸ = 38851786950367 is a prime.

It is a super-2 number, since 2×38851786950623² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38851786940623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19425893475311 + 19425893475312.

It is an arithmetic number, because the mean of its divisors is an integer number (19425893475312).

Almost surely, 2^{38851786950623} is an apocalyptic number.

38851786950623 is a deficient number, since it is larger than the sum of its proper divisors (1).

38851786950623 is an equidigital number, since it uses as much as digits as its factorization.

38851786950623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 522547200, while the sum is 71.

The spelling of 38851786950623 in words is "thirty-eight trillion, eight hundred fifty-one billion, seven hundred eighty-six million, nine hundred fifty thousand, six hundred twenty-three".