100276613681 has 2 divisors, whose sum is σ = 100276613682. Its totient is φ = 100276613680.

The previous prime is 100276613621. The next prime is 100276613699. The reversal of 100276613681 is 186316672001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63887617600 + 36388996081 = 252760^2 + 190759^2 .

It is a cyclic number.

It is not a de Polignac number, because 100276613681 - 2³⁰ = 99202871857 is a prime.

It is a super-4 number, since 4×100276613681⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (100276613621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50138306840 + 50138306841.

It is an arithmetic number, because the mean of its divisors is an integer number (50138306841).

Almost surely, 2^100276613681 is an apocalyptic number.

It is an amenable number.

100276613681 is a deficient number, since it is larger than the sum of its proper divisors (1).

100276613681 is an equidigital number, since it uses as much as digits as its factorization.

100276613681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 100276613681 in words is "one hundred billion, two hundred seventy-six million, six hundred thirteen thousand, six hundred eighty-one".