42730812838 has 16 divisors (see below), whose sum is σ = 73702229760. Its totient is φ = 18200853576.

The previous prime is 42730812829. The next prime is 42730812847. The reversal of 42730812838 is 83821803724.

It is an interprime number because it is at equal distance from previous prime (42730812829) and next prime (42730812847).

It is a super-2 number, since 2×42730812838² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9360298 + ... + 9364861.

It is an arithmetic number, because the mean of its divisors is an integer number (4606389360).

Almost surely, 2^42730812838 is an apocalyptic number.

42730812838 is a deficient number, since it is larger than the sum of its proper divisors (30971416922).

42730812838 is a wasteful number, since it uses less digits than its factorization.

42730812838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18725331.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 42730812838 in words is "forty-two billion, seven hundred thirty million, eight hundred twelve thousand, eight hundred thirty-eight".