100091476521973 has 2 divisors, whose sum is σ = 100091476521974. Its totient is φ = 100091476521972.

The previous prime is 100091476521961. The next prime is 100091476522001. The reversal of 100091476521973 is 379125674190001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99448622146449 + 642854375524 = 9972393^2 + 801782^2 .

It is a cyclic number.

It is not a de Polignac number, because 100091476521973 - 2⁵ = 100091476521941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100091476525973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50045738260986 + 50045738260987.

It is an arithmetic number, because the mean of its divisors is an integer number (50045738260987).

Almost surely, 2^{100091476521973} is an apocalyptic number.

It is an amenable number.

100091476521973 is a deficient number, since it is larger than the sum of its proper divisors (1).

100091476521973 is an equidigital number, since it uses as much as digits as its factorization.

100091476521973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 100091476521973 in words is "one hundred trillion, ninety-one billion, four hundred seventy-six million, five hundred twenty-one thousand, nine hundred seventy-three".