127022146687 has 4 divisors (see below), whose sum is σ = 127137938256. Its totient is φ = 126906355120.

The previous prime is 127022146651. The next prime is 127022146703. The reversal of 127022146687 is 786641220721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786641220721 = 37 ⋅21260573533.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127022146687 is a prime.

It is a super-2 number, since 2×127022146687² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127022146637) 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, 57894139 + ... + 57896332.

It is an arithmetic number, because the mean of its divisors is an integer number (31784484564).

Almost surely, 2^127022146687 is an apocalyptic number.

127022146687 is a deficient number, since it is larger than the sum of its proper divisors (115791569).

127022146687 is a wasteful number, since it uses less digits than its factorization.

127022146687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115791568.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 127022146687 in words is "one hundred twenty-seven billion, twenty-two million, one hundred forty-six thousand, six hundred eighty-seven".