42385115385 has 24 divisors (see below), whose sum is σ = 73638025344. Its totient is φ = 22552935840.

The previous prime is 42385115363. The next prime is 42385115413. The reversal of 42385115385 is 58351158324.

42385115385 is a `hidden beast` number, since 4 + 2 + 3 + 8 + 511 + 53 + 85 = 666.

It is not a de Polignac number, because 42385115385 - 2⁷ = 42385115257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 42385115385.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1073287 + ... + 1112076.

It is an arithmetic number, because the mean of its divisors is an integer number (3068251056).

Almost surely, 2^42385115385 is an apocalyptic number.

42385115385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42385115385 is a deficient number, since it is larger than the sum of its proper divisors (31252909959).

42385115385 is a wasteful number, since it uses less digits than its factorization.

42385115385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2185805 (or 2185802 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The spelling of 42385115385 in words is "forty-two billion, three hundred eighty-five million, one hundred fifteen thousand, three hundred eighty-five".