127612734077 has 4 divisors (see below), whose sum is σ = 127678753980. Its totient is φ = 127546714176.

The previous prime is 127612734061. The next prime is 127612734083. The reversal of 127612734077 is 770437216721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 770437216721 = 2377 ⋅324121673.

It can be written as a sum of positive squares in 2 ways, for example, as 90123642436 + 37489091641 = 300206^2 + 193621^2 .

It is a cyclic number.

It is not a de Polignac number, because 127612734077 - 2⁴ = 127612734061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127612734677) 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, 33007052 + ... + 33010917.

It is an arithmetic number, because the mean of its divisors is an integer number (31919688495).

Almost surely, 2^127612734077 is an apocalyptic number.

It is an amenable number.

127612734077 is a deficient number, since it is larger than the sum of its proper divisors (66019903).

127612734077 is an equidigital number, since it uses as much as digits as its factorization.

127612734077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66019902.

The product of its (nonzero) digits is 691488, while the sum is 47.

The spelling of 127612734077 in words is "one hundred twenty-seven billion, six hundred twelve million, seven hundred thirty-four thousand, seventy-seven".