127515853621212 has 24 divisors (see below), whose sum is σ = 340042276323456. Its totient is φ = 36433101034608.

The previous prime is 127515853621193. The next prime is 127515853621243. The reversal of 127515853621212 is 212126358515721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759022938138 + ... + 759022938305.

It is an arithmetic number, because the mean of its divisors is an integer number (14168428180144).

Almost surely, 2^{127515853621212} is an apocalyptic number.

127515853621212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

127515853621212 is an abundant number, since it is smaller than the sum of its proper divisors (212526422702244).

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

127515853621212 is a wasteful number, since it uses less digits than its factorization.

127515853621212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518045876457 (or 1518045876455 counting only the distinct ones).

The product of its digits is 2016000, while the sum is 51.

The spelling of 127515853621212 in words is "one hundred twenty-seven trillion, five hundred fifteen billion, eight hundred fifty-three million, six hundred twenty-one thousand, two hundred twelve".