126405767613 has 8 divisors (see below), whose sum is σ = 178455201408. Its totient is φ = 79313422784.

The previous prime is 126405767611. The next prime is 126405767633. The reversal of 126405767613 is 316767504621.

It is a happy number.

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 126405767613 - 2¹ = 126405767611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126405767611) 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, 1239272181 + ... + 1239272282.

It is an arithmetic number, because the mean of its divisors is an integer number (22306900176).

Almost surely, 2^126405767613 is an apocalyptic number.

It is an amenable number.

126405767613 is a deficient number, since it is larger than the sum of its proper divisors (52049433795).

126405767613 is a wasteful number, since it uses less digits than its factorization.

126405767613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2478544483.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 126405767613 in words is "one hundred twenty-six billion, four hundred five million, seven hundred sixty-seven thousand, six hundred thirteen".