1273228700540 has 24 divisors (see below), whose sum is σ = 2735961209520. Its totient is φ = 497447491968.

The previous prime is 1273228700539. The next prime is 1273228700573. The reversal of 1273228700540 is 450078223721.

It is a super-2 number, since 2×1273228700540² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740248385 + ... + 740250104.

It is an arithmetic number, because the mean of its divisors is an integer number (113998383730).

Almost surely, 2^{1273228700540} is an apocalyptic number.

1273228700540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1273228700540 is an abundant number, since it is smaller than the sum of its proper divisors (1462732508980).

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

1273228700540 is a wasteful number, since it uses less digits than its factorization.

1273228700540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480498541 (or 1480498539 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 41.

The spelling of 1273228700540 in words is "one trillion, two hundred seventy-three billion, two hundred twenty-eight million, seven hundred thousand, five hundred forty".