2381638954627 has 2 divisors, whose sum is σ = 2381638954628. Its totient is φ = 2381638954626.

The previous prime is 2381638954621. The next prime is 2381638954691. The reversal of 2381638954627 is 7264598361832.

It is an a-pointer prime, because the next prime (2381638954691) can be obtained adding 2381638954627 to its sum of digits (64).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2381638954627 - 2²³ = 2381630566019 is a prime.

It is a super-2 number, since 2×2381638954627² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2381638954621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1190819477313 + 1190819477314.

It is an arithmetic number, because the mean of its divisors is an integer number (1190819477314).

Almost surely, 2^{2381638954627} is an apocalyptic number.

2381638954627 is a deficient number, since it is larger than the sum of its proper divisors (1).

2381638954627 is an equidigital number, since it uses as much as digits as its factorization.

2381638954627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104509440, while the sum is 64.

The spelling of 2381638954627 in words is "two trillion, three hundred eighty-one billion, six hundred thirty-eight million, nine hundred fifty-four thousand, six hundred twenty-seven".