10148644381 has 2 divisors, whose sum is σ = 10148644382. Its totient is φ = 10148644380.

The previous prime is 10148644369. The next prime is 10148644403. The reversal of 10148644381 is 18344684101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10145525625 + 3118756 = 100725^2 + 1766^2 .

It is a cyclic number.

It is not a de Polignac number, because 10148644381 - 2¹³ = 10148636189 is a prime.

It is a super-2 number, since 2×10148644381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10148644981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5074322190 + 5074322191.

It is an arithmetic number, because the mean of its divisors is an integer number (5074322191).

Almost surely, 2^10148644381 is an apocalyptic number.

It is an amenable number.

10148644381 is a deficient number, since it is larger than the sum of its proper divisors (1).

10148644381 is an equidigital number, since it uses as much as digits as its factorization.

10148644381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 10148644381 in words is "ten billion, one hundred forty-eight million, six hundred forty-four thousand, three hundred eighty-one".