42504256738 has 8 divisors (see below), whose sum is σ = 63868044240. Its totient is φ = 21214908660.

The previous prime is 42504256727. The next prime is 42504256747. The reversal of 42504256738 is 83765240524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×42504256738² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18608428 + ... + 18610711.

It is an arithmetic number, because the mean of its divisors is an integer number (7983505530).

Almost surely, 2^42504256738 is an apocalyptic number.

42504256738 is a deficient number, since it is larger than the sum of its proper divisors (21363787502).

42504256738 is a wasteful number, since it uses less digits than its factorization.

42504256738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37219712.

The product of its (nonzero) digits is 1612800, while the sum is 46.

The spelling of 42504256738 in words is "forty-two billion, five hundred four million, two hundred fifty-six thousand, seven hundred thirty-eight".