108049690897 has 2 divisors, whose sum is σ = 108049690898. Its totient is φ = 108049690896.

The previous prime is 108049690877. The next prime is 108049690951. The reversal of 108049690897 is 798096940801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83523312016 + 24526378881 = 289004^2 + 156609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108049690897 is a prime.

It is not a weakly prime, because it can be changed into another prime (108049690817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54024845448 + 54024845449.

It is an arithmetic number, because the mean of its divisors is an integer number (54024845449).

Almost surely, 2^108049690897 is an apocalyptic number.

It is an amenable number.

108049690897 is a deficient number, since it is larger than the sum of its proper divisors (1).

108049690897 is an equidigital number, since it uses as much as digits as its factorization.

108049690897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 108049690897 in words is "one hundred eight billion, forty-nine million, six hundred ninety thousand, eight hundred ninety-seven".