127870257781532 has 48 divisors (see below), whose sum is σ = 266866364513280. Its totient is φ = 52417548133632.

The previous prime is 127870257781501. The next prime is 127870257781547. The reversal of 127870257781532 is 235187752078721.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23402969 + ... + 28345007.

It is an arithmetic number, because the mean of its divisors is an integer number (5559715927360).

Almost surely, 2^{127870257781532} is an apocalyptic number.

It is an amenable number.

127870257781532 is an abundant number, since it is smaller than the sum of its proper divisors (138996106731748).

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

127870257781532 is a wasteful number, since it uses less digits than its factorization.

127870257781532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982250 (or 4982248 counting only the distinct ones).

The product of its (nonzero) digits is 92198400, while the sum is 65.

The spelling of 127870257781532 in words is "one hundred twenty-seven trillion, eight hundred seventy billion, two hundred fifty-seven million, seven hundred eighty-one thousand, five hundred thirty-two".