108390276877 has 2 divisors, whose sum is σ = 108390276878. Its totient is φ = 108390276876.

The previous prime is 108390276871. The next prime is 108390276881. The reversal of 108390276877 is 778672093801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108223892676 + 166384201 = 328974^2 + 12899^2 .

It is a cyclic number.

It is not a de Polignac number, because 108390276877 - 2¹¹ = 108390274829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108390276871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54195138438 + 54195138439.

It is an arithmetic number, because the mean of its divisors is an integer number (54195138439).

Almost surely, 2^108390276877 is an apocalyptic number.

It is an amenable number.

108390276877 is a deficient number, since it is larger than the sum of its proper divisors (1).

108390276877 is an equidigital number, since it uses as much as digits as its factorization.

108390276877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 58.

The spelling of 108390276877 in words is "one hundred eight billion, three hundred ninety million, two hundred seventy-six thousand, eight hundred seventy-seven".