128647000379 has 2 divisors, whose sum is σ = 128647000380. Its totient is φ = 128647000378.

The previous prime is 128647000337. The next prime is 128647000441. The reversal of 128647000379 is 973000746821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128647000379 is a prime.

It is a super-2 number, since 2×128647000379² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128647080379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64323500189 + 64323500190.

It is an arithmetic number, because the mean of its divisors is an integer number (64323500190).

Almost surely, 2^128647000379 is an apocalyptic number.

128647000379 is a deficient number, since it is larger than the sum of its proper divisors (1).

128647000379 is an equidigital number, since it uses as much as digits as its factorization.

128647000379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 128647000379 in words is "one hundred twenty-eight billion, six hundred forty-seven million, three hundred seventy-nine", and thus it is an aban number.