381091427627 has 2 divisors, whose sum is σ = 381091427628. Its totient is φ = 381091427626.

The previous prime is 381091427593. The next prime is 381091427641. The reversal of 381091427627 is 726724190183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 381091427627 - 2²⁰ = 381090379051 is a prime.

It is a super-2 number, since 2×381091427627² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (381091420627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190545713813 + 190545713814.

It is an arithmetic number, because the mean of its divisors is an integer number (190545713814).

Almost surely, 2^381091427627 is an apocalyptic number.

381091427627 is a deficient number, since it is larger than the sum of its proper divisors (1).

381091427627 is an equidigital number, since it uses as much as digits as its factorization.

381091427627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 381091427627 in words is "three hundred eighty-one billion, ninety-one million, four hundred twenty-seven thousand, six hundred twenty-seven".