126740827261 has 8 divisors (see below), whose sum is σ = 127791284544. Its totient is φ = 125691627360.

The previous prime is 126740827259. The next prime is 126740827333. The reversal of 126740827261 is 162728047621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126740827261 - 2¹ = 126740827259 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 (126740827201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111376 + ... + 515641.

It is an arithmetic number, because the mean of its divisors is an integer number (15973910568).

Almost surely, 2^126740827261 is an apocalyptic number.

It is an amenable number.

126740827261 is a deficient number, since it is larger than the sum of its proper divisors (1050457283).

126740827261 is a wasteful number, since it uses less digits than its factorization.

126740827261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628691.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 126740827261 in words is "one hundred twenty-six billion, seven hundred forty million, eight hundred twenty-seven thousand, two hundred sixty-one".