383128605551 has 2 divisors, whose sum is σ = 383128605552. Its totient is φ = 383128605550.

The previous prime is 383128605547. The next prime is 383128605611. The reversal of 383128605551 is 155506821383.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 383128605551 - 2² = 383128605547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 383128605496 and 383128605505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (383128605851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191564302775 + 191564302776.

It is an arithmetic number, because the mean of its divisors is an integer number (191564302776).

Almost surely, 2^383128605551 is an apocalyptic number.

383128605551 is a deficient number, since it is larger than the sum of its proper divisors (1).

383128605551 is an equidigital number, since it uses as much as digits as its factorization.

383128605551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864000, while the sum is 47.

The spelling of 383128605551 in words is "three hundred eighty-three billion, one hundred twenty-eight million, six hundred five thousand, five hundred fifty-one".