1276581468 has 48 divisors (see below), whose sum is σ = 3017710080. Its totient is φ = 419971200.

The previous prime is 1276581433. The next prime is 1276581503. The reversal of 1276581468 is 8641856721.

It is an interprime number because it is at equal distance from previous prime (1276581433) and next prime (1276581503).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1036413 + ... + 1037643.

It is an arithmetic number, because the mean of its divisors is an integer number (62868960).

Almost surely, 2^1276581468 is an apocalyptic number.

It is an amenable number.

1276581468 is an abundant number, since it is smaller than the sum of its proper divisors (1741128612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1276581468 is a wasteful number, since it uses less digits than its factorization.

1276581468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298 (or 2296 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The square root of 1276581468 is about 35729.2802614326. The cubic root of 1276581468 is about 1084.7995886575.

The spelling of 1276581468 in words is "one billion, two hundred seventy-six million, five hundred eighty-one thousand, four hundred sixty-eight".