1272907941900 has 216 divisors, whose sum is σ = 4375400956416. Its totient is φ = 284759798400.

The previous prime is 1272907941889. The next prime is 1272907942001. The reversal of 1272907941900 is 91497092721.

It is a happy number.

It is a super-2 number, since 2×1272907941900² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 230296 + ... + 1612095.

Almost surely, 2^{1272907941900} is an apocalyptic number.

1272907941900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1272907941900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2187700478208).

1272907941900 is an abundant number, since it is smaller than the sum of its proper divisors (3102493014516).

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

1272907941900 is a wasteful number, since it uses less digits than its factorization.

1272907941900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842469 (or 1842455 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 51.

The spelling of 1272907941900 in words is "one trillion, two hundred seventy-two billion, nine hundred seven million, nine hundred forty-one thousand, nine hundred".