1270938538900 has 18 divisors (see below), whose sum is σ = 2757936629630. Its totient is φ = 508375415520.

The previous prime is 1270938538861. The next prime is 1270938538921. The reversal of 1270938538900 is 98358390721.

It can be written as a sum of positive squares in 3 ways, for example, as 448790126724 + 822148412176 = 669918^2 + 906724^2 .

It is a super-2 number, since 2×1270938538900² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6354692595 + ... + 6354692794.

Almost surely, 2^{1270938538900} is an apocalyptic number.

1270938538900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1270938538900 is an abundant number, since it is smaller than the sum of its proper divisors (1486998090730).

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

1270938538900 is a wasteful number, since it uses less digits than its factorization.

1270938538900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12709385403 (or 12709385396 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 1270938538900 in words is "one trillion, two hundred seventy billion, nine hundred thirty-eight million, five hundred thirty-eight thousand, nine hundred".