126744621061 has 16 divisors (see below), whose sum is σ = 132904981440. Its totient is φ = 120732554880.

The previous prime is 126744621023. The next prime is 126744621071. The reversal of 126744621061 is 160126447621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126744621061 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 (126744621071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5310591 + ... + 5334403.

It is an arithmetic number, because the mean of its divisors is an integer number (8306561340).

Almost surely, 2^126744621061 is an apocalyptic number.

It is an amenable number.

126744621061 is a deficient number, since it is larger than the sum of its proper divisors (6160360379).

126744621061 is a wasteful number, since it uses less digits than its factorization.

126744621061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26916.

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 126744621061 in words is "one hundred twenty-six billion, seven hundred forty-four million, six hundred twenty-one thousand, sixty-one".