127515137748 has 48 divisors (see below), whose sum is σ = 298620241920. Its totient is φ = 42350220000.

The previous prime is 127515137723. The next prime is 127515137767. The reversal of 127515137748 is 847731515721.

It is a happy number.

It is a super-2 number, since 2×127515137748² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 127515137748.

It is a congruent number.

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, 6977623 + ... + 6995873.

It is an arithmetic number, because the mean of its divisors is an integer number (6221255040).

Almost surely, 2^127515137748 is an apocalyptic number.

It is an amenable number.

127515137748 is an abundant number, since it is smaller than the sum of its proper divisors (171105104172).

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

127515137748 is a wasteful number, since it uses less digits than its factorization.

127515137748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20348 (or 20346 counting only the distinct ones).

The product of its digits is 1646400, while the sum is 51.

The spelling of 127515137748 in words is "one hundred twenty-seven billion, five hundred fifteen million, one hundred thirty-seven thousand, seven hundred forty-eight".