126042010651 has 4 divisors (see below), whose sum is σ = 126042896304. Its totient is φ = 126041125000.

The previous prime is 126042010649. The next prime is 126042010733. The reversal of 126042010651 is 156010240621.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 156010240621 = 2917 ⋅53483113.

It is a cyclic number.

It is not a de Polignac number, because 126042010651 - 2¹ = 126042010649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126042010051) 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, 175600 + ... + 531901.

It is an arithmetic number, because the mean of its divisors is an integer number (31510724076).

Almost surely, 2^126042010651 is an apocalyptic number.

126042010651 is a deficient number, since it is larger than the sum of its proper divisors (885653).

126042010651 is an equidigital number, since it uses as much as digits as its factorization.

126042010651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885652.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 126042010651 in words is "one hundred twenty-six billion, forty-two million, ten thousand, six hundred fifty-one".