381500383651 has 2 divisors, whose sum is σ = 381500383652. Its totient is φ = 381500383650.

The previous prime is 381500383637. The next prime is 381500383709. The reversal of 381500383651 is 156383005183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 381500383651 - 2¹⁷ = 381500252579 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 381500383598 and 381500383607.

It is not a weakly prime, because it can be changed into another prime (381500383951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190750191825 + 190750191826.

It is an arithmetic number, because the mean of its divisors is an integer number (190750191826).

Almost surely, 2^381500383651 is an apocalyptic number.

381500383651 is a deficient number, since it is larger than the sum of its proper divisors (1).

381500383651 is an equidigital number, since it uses as much as digits as its factorization.

381500383651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 381500383651 in words is "three hundred eighty-one billion, five hundred million, three hundred eighty-three thousand, six hundred fifty-one".