42607068381 has 6 divisors (see below), whose sum is σ = 61543543230. Its totient is φ = 28404712248.

The previous prime is 42607068311. The next prime is 42607068389. The reversal of 42607068381 is 18386070624.

42607068381 is a `hidden beast` number, since 4 + 2 + 607 + 0 + 6 + 8 + 38 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21567565881 + 21039502500 = 146859^2 + 145050^2 .

It is not a de Polignac number, because 42607068381 - 2²¹ = 42604971229 is a prime.

It is a super-2 number, since 2×42607068381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42607068389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2367059346 + ... + 2367059363.

It is an arithmetic number, because the mean of its divisors is an integer number (10257257205).

Almost surely, 2^42607068381 is an apocalyptic number.

It is an amenable number.

42607068381 is a deficient number, since it is larger than the sum of its proper divisors (18936474849).

42607068381 is a wasteful number, since it uses less digits than its factorization.

42607068381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4734118715 (or 4734118712 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 42607068381 in words is "forty-two billion, six hundred seven million, sixty-eight thousand, three hundred eighty-one".