387747622793 has 2 divisors, whose sum is σ = 387747622794. Its totient is φ = 387747622792.

The previous prime is 387747622771. The next prime is 387747622819. The reversal of 387747622793 is 397226747783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 317495060089 + 70252562704 = 563467^2 + 265052^2 .

It is a cyclic number.

It is not a de Polignac number, because 387747622793 - 2¹⁶ = 387747557257 is a prime.

It is a super-2 number, since 2×387747622793² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (387747622753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193873811396 + 193873811397.

It is an arithmetic number, because the mean of its divisors is an integer number (193873811397).

Almost surely, 2^387747622793 is an apocalyptic number.

It is an amenable number.

387747622793 is a deficient number, since it is larger than the sum of its proper divisors (1).

387747622793 is an equidigital number, since it uses as much as digits as its factorization.

387747622793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 149361408, while the sum is 65.

The spelling of 387747622793 in words is "three hundred eighty-seven billion, seven hundred forty-seven million, six hundred twenty-two thousand, seven hundred ninety-three".