387642474511 has 2 divisors, whose sum is σ = 387642474512. Its totient is φ = 387642474510.

The previous prime is 387642474409. The next prime is 387642474521. The reversal of 387642474511 is 115474246783.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 387642474511 - 2⁷ = 387642474383 is a prime.

It is a super-2 number, since 2×387642474511² (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 (387642474521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193821237255 + 193821237256.

It is an arithmetic number, because the mean of its divisors is an integer number (193821237256).

Almost surely, 2^387642474511 is an apocalyptic number.

387642474511 is a deficient number, since it is larger than the sum of its proper divisors (1).

387642474511 is an equidigital number, since it uses as much as digits as its factorization.

387642474511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 52.

The spelling of 387642474511 in words is "three hundred eighty-seven billion, six hundred forty-two million, four hundred seventy-four thousand, five hundred eleven".