387764152813 has 2 divisors, whose sum is σ = 387764152814. Its totient is φ = 387764152812.

The previous prime is 387764152771. The next prime is 387764152849. The reversal of 387764152813 is 318251467783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367821629289 + 19942523524 = 606483^2 + 141218^2 .

It is an emirp because it is prime and its reverse (318251467783) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387764152813 is a prime.

It is a super-2 number, since 2×387764152813² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387764152213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193882076406 + 193882076407.

It is an arithmetic number, because the mean of its divisors is an integer number (193882076407).

Almost surely, 2^387764152813 is an apocalyptic number.

It is an amenable number.

387764152813 is a deficient number, since it is larger than the sum of its proper divisors (1).

387764152813 is an equidigital number, since it uses as much as digits as its factorization.

387764152813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6773760, while the sum is 55.

The spelling of 387764152813 in words is "three hundred eighty-seven billion, seven hundred sixty-four million, one hundred fifty-two thousand, eight hundred thirteen".