1277082960 has 40 divisors (see below), whose sum is σ = 3958957920. Its totient is φ = 340555392.

The previous prime is 1277082941. The next prime is 1277082971. The reversal of 1277082960 is 692807721.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2660350 + ... + 2660829.

It is an arithmetic number, because the mean of its divisors is an integer number (98973948).

Almost surely, 2^1277082960 is an apocalyptic number.

1277082960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1277082960 is an abundant number, since it is smaller than the sum of its proper divisors (2681874960).

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

1277082960 is a wasteful number, since it uses less digits than its factorization.

1277082960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321195 (or 5321189 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 1277082960 is about 35736.2975138724. The cubic root of 1277082960 is about 1084.9416208759.

The spelling of 1277082960 in words is "one billion, two hundred seventy-seven million, eighty-two thousand, nine hundred sixty".