838547145830 has 32 divisors (see below), whose sum is σ = 1564938593280. Its totient is φ = 323168916960.

The previous prime is 838547145823. The next prime is 838547145869. The reversal of 838547145830 is 38541745838.

It is a super-2 number, since 2×838547145830² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5887760 + ... + 6028499.

It is an arithmetic number, because the mean of its divisors is an integer number (48904331040).

Almost surely, 2^838547145830 is an apocalyptic number.

838547145830 is a deficient number, since it is larger than the sum of its proper divisors (726391447450).

838547145830 is a wasteful number, since it uses less digits than its factorization.

838547145830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11916524.

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 838547145830 in words is "eight hundred thirty-eight billion, five hundred forty-seven million, one hundred forty-five thousand, eight hundred thirty".