100009999951 has 2 divisors, whose sum is σ = 100009999952. Its totient is φ = 100009999950.

The previous prime is 100009999939. The next prime is 100009999967. The reversal of 100009999951 is 159999900001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100009999951 - 2⁷ = 100009999823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100009499951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50004999975 + 50004999976.

It is an arithmetic number, because the mean of its divisors is an integer number (50004999976).

Almost surely, 2^100009999951 is an apocalyptic number.

100009999951 is a deficient number, since it is larger than the sum of its proper divisors (1).

100009999951 is an equidigital number, since it uses as much as digits as its factorization.

100009999951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 295245, while the sum is 52.

The spelling of 100009999951 in words is "one hundred billion, nine million, nine hundred ninety-nine thousand, nine hundred fifty-one".