1272091916130 has 64 divisors (see below), whose sum is σ = 3489293030400. Its totient is φ = 290753313984.

The previous prime is 1272091916129. The next prime is 1272091916149. The reversal of 1272091916130 is 316191902721.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 6689017 + ... + 6876563.

It is an arithmetic number, because the mean of its divisors is an integer number (54520203600).

Almost surely, 2^{1272091916130} is an apocalyptic number.

1272091916130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1272091916130 is an abundant number, since it is smaller than the sum of its proper divisors (2217201114270).

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

1272091916130 is a wasteful number, since it uses less digits than its factorization.

1272091916130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219863.

The product of its (nonzero) digits is 40824, while the sum is 42.

The spelling of 1272091916130 in words is "one trillion, two hundred seventy-two billion, ninety-one million, nine hundred sixteen thousand, one hundred thirty".