126277850357 has 4 divisors (see below), whose sum is σ = 130632259020. Its totient is φ = 121923441696.

The previous prime is 126277850351. The next prime is 126277850371. The reversal of 126277850357 is 753058772621.

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

It can be written as a sum of positive squares in 2 ways, for example, as 101553118276 + 24724732081 = 318674^2 + 157241^2 .

It is a cyclic number.

It is not a de Polignac number, because 126277850357 - 2¹⁰ = 126277849333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126277850299 and 126277850308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126277850351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2177204288 + ... + 2177204345.

It is an arithmetic number, because the mean of its divisors is an integer number (32658064755).

Almost surely, 2^126277850357 is an apocalyptic number.

It is an amenable number.

126277850357 is a deficient number, since it is larger than the sum of its proper divisors (4354408663).

126277850357 is an equidigital number, since it uses as much as digits as its factorization.

126277850357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4354408662.

The product of its (nonzero) digits is 4939200, while the sum is 53.

The spelling of 126277850357 in words is "one hundred twenty-six billion, two hundred seventy-seven million, eight hundred fifty thousand, three hundred fifty-seven".