102826036381 has 2 divisors, whose sum is σ = 102826036382. Its totient is φ = 102826036380.

The previous prime is 102826036349. The next prime is 102826036421. The reversal of 102826036381 is 183630628201.

It is an a-pointer prime, because the next prime (102826036421) can be obtained adding 102826036381 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57910016025 + 44916020356 = 240645^2 + 211934^2 .

It is a cyclic number.

It is not a de Polignac number, because 102826036381 - 2⁵ = 102826036349 is a prime.

It is a super-2 number, since 2×102826036381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102826036981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51413018190 + 51413018191.

It is an arithmetic number, because the mean of its divisors is an integer number (51413018191).

Almost surely, 2^102826036381 is an apocalyptic number.

It is an amenable number.

102826036381 is a deficient number, since it is larger than the sum of its proper divisors (1).

102826036381 is an equidigital number, since it uses as much as digits as its factorization.

102826036381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 102826036381 in words is "one hundred two billion, eight hundred twenty-six million, thirty-six thousand, three hundred eighty-one".