1247277134900 has 18 divisors (see below), whose sum is σ = 2706591382950. Its totient is φ = 498910853920.

The previous prime is 1247277134899. The next prime is 1247277134903. The reversal of 1247277134900 is 94317727421.

It can be written as a sum of positive squares in 3 ways, for example, as 431864522896 + 815412612004 = 657164^2 + 903002^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247277134903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6236385575 + ... + 6236385774.

Almost surely, 2^{1247277134900} is an apocalyptic number.

1247277134900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1247277134900 is an abundant number, since it is smaller than the sum of its proper divisors (1459314248050).

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

1247277134900 is a wasteful number, since it uses less digits than its factorization.

1247277134900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12472771363 (or 12472771356 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The spelling of 1247277134900 in words is "one trillion, two hundred forty-seven billion, two hundred seventy-seven million, one hundred thirty-four thousand, nine hundred".