42781159503 has 10 divisors (see below), whose sum is σ = 63907658144. Its totient is φ = 28520772948.

The previous prime is 42781159483. The next prime is 42781159543. The reversal of 42781159503 is 30595118724.

42781159503 is a `hidden beast` number, since 4 + 27 + 8 + 115 + 9 + 503 = 666.

It is not a de Polignac number, because 42781159503 - 2⁵ = 42781159471 is a prime.

It is a super-2 number, since 2×42781159503² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42781159543) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 264081151 + ... + 264081312.

Almost surely, 2^42781159503 is an apocalyptic number.

42781159503 is a deficient number, since it is larger than the sum of its proper divisors (21126498641).

42781159503 is an equidigital number, since it uses as much as digits as its factorization.

42781159503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528162475 (or 528162466 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 42781159503 in words is "forty-two billion, seven hundred eighty-one million, one hundred fifty-nine thousand, five hundred three".