260481779 has 2 divisors, whose sum is σ = 260481780. Its totient is φ = 260481778.

The previous prime is 260481761. The next prime is 260481787. The reversal of 260481779 is 977184062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260481779 - 2⁸ = 260481523 is a prime.

It is not a weakly prime, because it can be changed into another prime (260481479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130240889 + 130240890.

It is an arithmetic number, because the mean of its divisors is an integer number (130240890).

Almost surely, 2^260481779 is an apocalyptic number.

260481779 is a deficient number, since it is larger than the sum of its proper divisors (1).

260481779 is an equidigital number, since it uses as much as digits as its factorization.

260481779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 260481779 is about 16139.4479149691. The cubic root of 260481779 is about 638.6444118343.

The spelling of 260481779 in words is "two hundred sixty million, four hundred eighty-one thousand, seven hundred seventy-nine".