1276791348080 has 40 divisors (see below), whose sum is σ = 3064299241344. Its totient is φ = 494241811200.

The previous prime is 1276791348073. The next prime is 1276791348083. The reversal of 1276791348080 is 808431976721.

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

It is a super-2 number, since 2×1276791348080² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276791348083) 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, 257415131 + ... + 257420090.

Almost surely, 2^{1276791348080} is an apocalyptic number.

1276791348080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1276791348080 is an abundant number, since it is smaller than the sum of its proper divisors (1787507893264).

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

1276791348080 is a wasteful number, since it uses less digits than its factorization.

1276791348080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514835265 (or 514835259 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 1276791348080 in words is "one trillion, two hundred seventy-six billion, seven hundred ninety-one million, three hundred forty-eight thousand, eighty".