127988731151 has 4 divisors (see below), whose sum is σ = 127990573392. Its totient is φ = 127986888912.

The previous prime is 127988731127. The next prime is 127988731153. The reversal of 127988731151 is 151137889721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127988731151 - 2²² = 127984536847 is a prime.

It is a super-2 number, since 2×127988731151² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 127988731093 and 127988731102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127988731153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812651 + ... + 957276.

It is an arithmetic number, because the mean of its divisors is an integer number (31997643348).

Almost surely, 2^127988731151 is an apocalyptic number.

127988731151 is a deficient number, since it is larger than the sum of its proper divisors (1842241).

127988731151 is an equidigital number, since it uses as much as digits as its factorization.

127988731151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842240.

The product of its digits is 846720, while the sum is 53.

The spelling of 127988731151 in words is "one hundred twenty-seven billion, nine hundred eighty-eight million, seven hundred thirty-one thousand, one hundred fifty-one".