108877738381 has 2 divisors, whose sum is σ = 108877738382. Its totient is φ = 108877738380.

The previous prime is 108877738373. The next prime is 108877738393. The reversal of 108877738381 is 183837778801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73921453225 + 34956285156 = 271885^2 + 186966^2 .

It is a cyclic number.

It is not a de Polignac number, because 108877738381 - 2³ = 108877738373 is a prime.

It is a super-2 number, since 2×108877738381² (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 (108877738181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54438869190 + 54438869191.

It is an arithmetic number, because the mean of its divisors is an integer number (54438869191).

Almost surely, 2^108877738381 is an apocalyptic number.

It is an amenable number.

108877738381 is a deficient number, since it is larger than the sum of its proper divisors (1).

108877738381 is an equidigital number, since it uses as much as digits as its factorization.

108877738381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12644352, while the sum is 61.

The spelling of 108877738381 in words is "one hundred eight billion, eight hundred seventy-seven million, seven hundred thirty-eight thousand, three hundred eighty-one".