387600742409 has 2 divisors, whose sum is σ = 387600742410. Its totient is φ = 387600742408.

The previous prime is 387600742351. The next prime is 387600742411. The reversal of 387600742409 is 904247006783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383879376400 + 3721366009 = 619580^2 + 61003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387600742409 is a prime.

It is a super-2 number, since 2×387600742409² (a number of 24 digits) contains 22 as substring.

Together with 387600742411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (387600742489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193800371204 + 193800371205.

It is an arithmetic number, because the mean of its divisors is an integer number (193800371205).

Almost surely, 2^387600742409 is an apocalyptic number.

It is an amenable number.

387600742409 is a deficient number, since it is larger than the sum of its proper divisors (1).

387600742409 is an equidigital number, since it uses as much as digits as its factorization.

387600742409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 387600742409 in words is "three hundred eighty-seven billion, six hundred million, seven hundred forty-two thousand, four hundred nine".