42503441440987 has 2 divisors, whose sum is σ = 42503441440988. Its totient is φ = 42503441440986.

The previous prime is 42503441440973. The next prime is 42503441441029. The reversal of 42503441440987 is 78904414430524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42503441440987 is a prime.

It is a super-2 number, since 2×42503441440987² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42503441440937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21251720720493 + 21251720720494.

It is an arithmetic number, because the mean of its divisors is an integer number (21251720720494).

Almost surely, 2^{42503441440987} is an apocalyptic number.

42503441440987 is a deficient number, since it is larger than the sum of its proper divisors (1).

42503441440987 is an equidigital number, since it uses as much as digits as its factorization.

42503441440987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 42503441440987 in words is "forty-two trillion, five hundred three billion, four hundred forty-one million, four hundred forty thousand, nine hundred eighty-seven".