1280676271 has 16 divisors (see below), whose sum is σ = 1528372224. Its totient is φ = 1049235264.

The previous prime is 1280676251. The next prime is 1280676281. The reversal of 1280676271 is 1726760821.

It is not a de Polignac number, because 1280676271 - 2²¹ = 1278579119 is a prime.

It is a super-2 number, since 2×1280676271² = 3280263422204930882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280676211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368086 + ... + 371548.

It is an arithmetic number, because the mean of its divisors is an integer number (95523264).

Almost surely, 2^1280676271 is an apocalyptic number.

1280676271 is a deficient number, since it is larger than the sum of its proper divisors (247695953).

1280676271 is a wasteful number, since it uses less digits than its factorization.

1280676271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5790.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 1280676271 is about 35786.5375665207. The cubic root of 1280676271 is about 1085.9582298385.

The spelling of 1280676271 in words is "one billion, two hundred eighty million, six hundred seventy-six thousand, two hundred seventy-one".