42540848758 has 4 divisors (see below), whose sum is σ = 63811273140. Its totient is φ = 21270424378.

The previous prime is 42540848723. The next prime is 42540848759. The reversal of 42540848758 is 85784804524.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 42540848699 and 42540848708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42540848759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10635212188 + ... + 10635212191.

It is an arithmetic number, because the mean of its divisors is an integer number (15952818285).

Almost surely, 2^42540848758 is an apocalyptic number.

42540848758 is a deficient number, since it is larger than the sum of its proper divisors (21270424382).

42540848758 is a wasteful number, since it uses less digits than its factorization.

42540848758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21270424381.

The product of its (nonzero) digits is 11468800, while the sum is 55.

The spelling of 42540848758 in words is "forty-two billion, five hundred forty million, eight hundred forty-eight thousand, seven hundred fifty-eight".