409126663540 has 24 divisors (see below), whose sum is σ = 981903992832. Its totient is φ = 140271998880.

The previous prime is 409126663523. The next prime is 409126663549. The reversal of 409126663540 is 45366621904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409126663549) 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, 1461166516 + ... + 1461166795.

It is an arithmetic number, because the mean of its divisors is an integer number (40912666368).

Almost surely, 2^409126663540 is an apocalyptic number.

It is an amenable number.

409126663540 is an abundant number, since it is smaller than the sum of its proper divisors (572777329292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409126663540 is a wasteful number, since it uses less digits than its factorization.

409126663540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922333327 (or 2922333325 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 409126663540 in words is "four hundred nine billion, one hundred twenty-six million, six hundred sixty-three thousand, five hundred forty".