101873894957 has 2 divisors, whose sum is σ = 101873894958. Its totient is φ = 101873894956.

The previous prime is 101873894953. The next prime is 101873894977. The reversal of 101873894957 is 759498378101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51181822756 + 50692072201 = 226234^2 + 225149^2 .

It is a cyclic number.

It is not a de Polignac number, because 101873894957 - 2² = 101873894953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101873894957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101873894953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50936947478 + 50936947479.

It is an arithmetic number, because the mean of its divisors is an integer number (50936947479).

Almost surely, 2^101873894957 is an apocalyptic number.

It is an amenable number.

101873894957 is a deficient number, since it is larger than the sum of its proper divisors (1).

101873894957 is an equidigital number, since it uses as much as digits as its factorization.

101873894957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 62.

The spelling of 101873894957 in words is "one hundred one billion, eight hundred seventy-three million, eight hundred ninety-four thousand, nine hundred fifty-seven".