127266531452840 has 64 divisors (see below), whose sum is σ = 311841501123600. Its totient is φ = 46462733678592.

The previous prime is 127266531452831. The next prime is 127266531452857. The reversal of 127266531452840 is 48254135662721.

It can be written as a sum of positive squares in 8 ways, for example, as 1770480392836 + 125496051060004 = 1330594^2 + 11202502^2 .

It is a super-2 number, since 2×127266531452840² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1374916247 + ... + 1375008806.

Almost surely, 2^{127266531452840} is an apocalyptic number.

127266531452840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127266531452840 is an abundant number, since it is smaller than the sum of its proper divisors (184574969670760).

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

127266531452840 is a wasteful number, since it uses less digits than its factorization.

127266531452840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2749925166 (or 2749925162 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 56.

The spelling of 127266531452840 in words is "one hundred twenty-seven trillion, two hundred sixty-six billion, five hundred thirty-one million, four hundred fifty-two thousand, eight hundred forty".