126805627387 has 4 divisors (see below), whose sum is σ = 127136712960. Its totient is φ = 126474541816.

The previous prime is 126805627313. The next prime is 126805627423. The reversal of 126805627387 is 783726508621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783726508621 = 7 ⋅111960929803.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126805627387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126805627787) 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, 165542212 + ... + 165542977.

It is an arithmetic number, because the mean of its divisors is an integer number (31784178240).

Almost surely, 2^126805627387 is an apocalyptic number.

126805627387 is a deficient number, since it is larger than the sum of its proper divisors (331085573).

126805627387 is an equidigital number, since it uses as much as digits as its factorization.

126805627387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331085572.

The product of its (nonzero) digits is 6773760, while the sum is 55.

The spelling of 126805627387 in words is "one hundred twenty-six billion, eight hundred five million, six hundred twenty-seven thousand, three hundred eighty-seven".