1276885963 has 8 divisors (see below), whose sum is σ = 1410779808. Its totient is φ = 1149523584.

The previous prime is 1276885957. The next prime is 1276885969. The reversal of 1276885963 is 3695886721.

It is an interprime number because it is at equal distance from previous prime (1276885957) and next prime (1276885969).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1276885963 - 2⁵ = 1276885931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1276885969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1632456 + ... + 1633237.

It is an arithmetic number, because the mean of its divisors is an integer number (176347476).

Almost surely, 2^1276885963 is an apocalyptic number.

1276885963 is a deficient number, since it is larger than the sum of its proper divisors (133893845).

1276885963 is a wasteful number, since it uses less digits than its factorization.

1276885963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265733.

The product of its digits is 4354560, while the sum is 55.

The square root of 1276885963 is about 35733.5411483385. The cubic root of 1276885963 is about 1084.8858319564.

The spelling of 1276885963 in words is "one billion, two hundred seventy-six million, eight hundred eighty-five thousand, nine hundred sixty-three".