126137746373 has 4 divisors (see below), whose sum is σ = 126298023840. Its totient is φ = 125977468908.

The previous prime is 126137746351. The next prime is 126137746381. The reversal of 126137746373 is 373647731621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126137746373 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 (126137746303) 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, 80137553 + ... + 80139126.

It is an arithmetic number, because the mean of its divisors is an integer number (31574505960).

Almost surely, 2^126137746373 is an apocalyptic number.

It is an amenable number.

126137746373 is a deficient number, since it is larger than the sum of its proper divisors (160277467).

126137746373 is an equidigital number, since it uses as much as digits as its factorization.

126137746373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160277466.

The product of its digits is 2667168, while the sum is 50.

The spelling of 126137746373 in words is "one hundred twenty-six billion, one hundred thirty-seven million, seven hundred forty-six thousand, three hundred seventy-three".