126405642415 has 16 divisors (see below), whose sum is σ = 164257513056. Its totient is φ = 92829974400.

The previous prime is 126405642373. The next prime is 126405642443. The reversal of 126405642415 is 514246504621.

It is not a de Polignac number, because 126405642415 - 2²⁷ = 126271424687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5360341 + ... + 5383870.

It is an arithmetic number, because the mean of its divisors is an integer number (10266094566).

Almost surely, 2^126405642415 is an apocalyptic number.

126405642415 is a deficient number, since it is larger than the sum of its proper divisors (37851870641).

126405642415 is a wasteful number, since it uses less digits than its factorization.

126405642415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10744410.

The product of its (nonzero) digits is 230400, while the sum is 40.

The spelling of 126405642415 in words is "one hundred twenty-six billion, four hundred five million, six hundred forty-two thousand, four hundred fifteen".