100199741947 has 2 divisors, whose sum is σ = 100199741948. Its totient is φ = 100199741946.

The previous prime is 100199741899. The next prime is 100199742001. The reversal of 100199741947 is 749147991001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100199741947 - 2¹⁵ = 100199709179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100199741894 and 100199741903.

It is not a weakly prime, because it can be changed into another prime (100199711947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50099870973 + 50099870974.

It is an arithmetic number, because the mean of its divisors is an integer number (50099870974).

Almost surely, 2^100199741947 is an apocalyptic number.

100199741947 is a deficient number, since it is larger than the sum of its proper divisors (1).

100199741947 is an equidigital number, since it uses as much as digits as its factorization.

100199741947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536, while the sum is 52.

The spelling of 100199741947 in words is "one hundred billion, one hundred ninety-nine million, seven hundred forty-one thousand, nine hundred forty-seven".