42403640654 has 16 divisors (see below), whose sum is σ = 66843707568. Its totient is φ = 20149057152.

The previous prime is 42403640599. The next prime is 42403640693. The reversal of 42403640654 is 45604630424.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6659867 + ... + 6666230.

It is an arithmetic number, because the mean of its divisors is an integer number (4177731723).

Almost surely, 2^42403640654 is an apocalyptic number.

42403640654 is a deficient number, since it is larger than the sum of its proper divisors (24440066914).

42403640654 is a wasteful number, since it uses less digits than its factorization.

42403640654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13326179.

The product of its (nonzero) digits is 276480, while the sum is 38.

The spelling of 42403640654 in words is "forty-two billion, four hundred three million, six hundred forty thousand, six hundred fifty-four".