126700534357 has 4 divisors (see below), whose sum is σ = 126706838956. Its totient is φ = 126694229760.

The previous prime is 126700534349. The next prime is 126700534423. The reversal of 126700534357 is 753435007621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 753435007621 = 39209 ⋅19215869.

It can be written as a sum of positive squares in 2 ways, for example, as 27273201316 + 99427333041 = 165146^2 + 315321^2 .

It is a cyclic number.

It is not a de Polignac number, because 126700534357 - 2³ = 126700534349 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 (126700234357) 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, 3122058 + ... + 3162379.

It is an arithmetic number, because the mean of its divisors is an integer number (31676709739).

Almost surely, 2^126700534357 is an apocalyptic number.

It is an amenable number.

126700534357 is a deficient number, since it is larger than the sum of its proper divisors (6304599).

126700534357 is an equidigital number, since it uses as much as digits as its factorization.

126700534357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304598.

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 126700534357 in words is "one hundred twenty-six billion, seven hundred million, five hundred thirty-four thousand, three hundred fifty-seven".