42381455505111 has 6 divisors (see below), whose sum is σ = 61217657951840. Its totient is φ = 28254303670068.

The previous prime is 42381455505083. The next prime is 42381455505121. The reversal of 42381455505111 is 11150555418324.

42381455505111 is a `hidden beast` number, since 4 + 2 + 3 + 8 + 1 + 45 + 550 + 51 + 1 + 1 = 666.

It is not a de Polignac number, because 42381455505111 - 2⁶ = 42381455505047 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 (42381455505121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2354525305831 + ... + 2354525305848.

Almost surely, 2^{42381455505111} is an apocalyptic number.

42381455505111 is a deficient number, since it is larger than the sum of its proper divisors (18836202446729).

42381455505111 is a wasteful number, since it uses less digits than its factorization.

42381455505111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4709050611685 (or 4709050611682 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 45.

The spelling of 42381455505111 in words is "forty-two trillion, three hundred eighty-one billion, four hundred fifty-five million, five hundred five thousand, one hundred eleven".