100381940647 has 2 divisors, whose sum is σ = 100381940648. Its totient is φ = 100381940646.

The previous prime is 100381940611. The next prime is 100381940653. The reversal of 100381940647 is 746049183001.

It is a strong prime.

It is an emirp because it is prime and its reverse (746049183001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100381940647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100381940147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50190970323 + 50190970324.

It is an arithmetic number, because the mean of its divisors is an integer number (50190970324).

Almost surely, 2^100381940647 is an apocalyptic number.

100381940647 is a deficient number, since it is larger than the sum of its proper divisors (1).

100381940647 is an equidigital number, since it uses as much as digits as its factorization.

100381940647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 100381940647 in words is "one hundred billion, three hundred eighty-one million, nine hundred forty thousand, six hundred forty-seven".