42402640423 has 64 divisors (see below), whose sum is σ = 53299814400. Its totient is φ = 33160320000.

The previous prime is 42402640421. The next prime is 42402640451. The reversal of 42402640423 is 32404620424.

It is not a de Polignac number, because 42402640423 - 2¹ = 42402640421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42402640421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 52413243 + ... + 52414051.

It is an arithmetic number, because the mean of its divisors is an integer number (832809600).

Almost surely, 2^42402640423 is an apocalyptic number.

42402640423 is a deficient number, since it is larger than the sum of its proper divisors (10897173977).

42402640423 is a wasteful number, since it uses less digits than its factorization.

42402640423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 36864, while the sum is 31.

The spelling of 42402640423 in words is "forty-two billion, four hundred two million, six hundred forty thousand, four hundred twenty-three".