1272774274100 has 72 divisors (see below), whose sum is σ = 3159732639168. Its totient is φ = 435930105600.

The previous prime is 1272774274069. The next prime is 1272774274151. The reversal of 1272774274100 is 14724772721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 256577 + ... + 1615976.

It is an arithmetic number, because the mean of its divisors is an integer number (43885175544).

Almost surely, 2^{1272774274100} is an apocalyptic number.

1272774274100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1272774274100 is an abundant number, since it is smaller than the sum of its proper divisors (1886958365068).

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

1272774274100 is a wasteful number, since it uses less digits than its factorization.

1272774274100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873545 (or 1873538 counting only the distinct ones).

The product of its (nonzero) digits is 307328, while the sum is 44.

The spelling of 1272774274100 in words is "one trillion, two hundred seventy-two billion, seven hundred seventy-four million, two hundred seventy-four thousand, one hundred".