1276712980 has 48 divisors (see below), whose sum is σ = 2944932480. Its totient is φ = 462768768.

The previous prime is 1276712963. The next prime is 1276713007. The reversal of 1276712980 is 892176721.

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, 64299 + ... + 81778.

It is an arithmetic number, because the mean of its divisors is an integer number (61352760).

Almost surely, 2^1276712980 is an apocalyptic number.

1276712980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1276712980 is an abundant number, since it is smaller than the sum of its proper divisors (1668219500).

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

1276712980 is a wasteful number, since it uses less digits than its factorization.

1276712980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146128 (or 146126 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 1276712980 is about 35731.1206093512. The cubic root of 1276712980 is about 1084.8368389932.

The spelling of 1276712980 in words is "one billion, two hundred seventy-six million, seven hundred twelve thousand, nine hundred eighty".