260892936649777 has 2 divisors, whose sum is σ = 260892936649778. Its totient is φ = 260892936649776.

The previous prime is 260892936649747. The next prime is 260892936649817. The reversal of 260892936649777 is 777946639298062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162174086788081 + 98718849861696 = 12734759^2 + 9935736^2 .

It is a cyclic number.

It is not a de Polignac number, because 260892936649777 - 2⁷ = 260892936649649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 260892936649694 and 260892936649703.

It is not a weakly prime, because it can be changed into another prime (260892936649717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130446468324888 + 130446468324889.

It is an arithmetic number, because the mean of its divisors is an integer number (130446468324889).

Almost surely, 2^{260892936649777} is an apocalyptic number.

It is an amenable number.

260892936649777 is a deficient number, since it is larger than the sum of its proper divisors (1).

260892936649777 is an equidigital number, since it uses as much as digits as its factorization.

260892936649777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20739898368, while the sum is 85.

The spelling of 260892936649777 in words is "two hundred sixty trillion, eight hundred ninety-two billion, nine hundred thirty-six million, six hundred forty-nine thousand, seven hundred seventy-seven".