127861786140751 has 16 divisors (see below), whose sum is σ = 138366110754144. Its totient is φ = 117453574923264.

The previous prime is 127861786140667. The next prime is 127861786140769. The reversal of 127861786140751 is 157041687168721.

It is a cyclic number.

It is not a de Polignac number, because 127861786140751 - 2¹⁷ = 127861786009679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127861786120751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6494941 + ... + 17260006.

It is an arithmetic number, because the mean of its divisors is an integer number (8647881922134).

Almost surely, 2^{127861786140751} is an apocalyptic number.

127861786140751 is a deficient number, since it is larger than the sum of its proper divisors (10504324613393).

127861786140751 is a wasteful number, since it uses less digits than its factorization.

127861786140751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23756970.

The product of its (nonzero) digits is 31610880, while the sum is 64.

The spelling of 127861786140751 in words is "one hundred twenty-seven trillion, eight hundred sixty-one billion, seven hundred eighty-six million, one hundred forty thousand, seven hundred fifty-one".