126135743644 has 12 divisors (see below), whose sum is σ = 221576859504. Its totient is φ = 62828069504.

The previous prime is 126135743633. The next prime is 126135743651. The reversal of 126135743644 is 446347531621.

It is a junction number, because it is equal to n+sod(n) for n = 126135743594 and 126135743603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59949397 + ... + 59951500.

It is an arithmetic number, because the mean of its divisors is an integer number (18464738292).

Almost surely, 2^126135743644 is an apocalyptic number.

It is an amenable number.

126135743644 is a deficient number, since it is larger than the sum of its proper divisors (95441115860).

126135743644 is a wasteful number, since it uses less digits than its factorization.

126135743644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119901164 (or 119901162 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 46.

The spelling of 126135743644 in words is "one hundred twenty-six billion, one hundred thirty-five million, seven hundred forty-three thousand, six hundred forty-four".