229378531073387 has 4 divisors (see below), whose sum is σ = 231052826920776. Its totient is φ = 227704235226000.

The previous prime is 229378531073369. The next prime is 229378531073413. The reversal of 229378531073387 is 783370135873922.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 229378531073387 - 2¹² = 229378531069291 is a prime.

It is a super-2 number, since 2×229378531073387² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229378531073327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837147923489 + ... + 837147923762.

It is an arithmetic number, because the mean of its divisors is an integer number (57763206730194).

Almost surely, 2^{229378531073387} is an apocalyptic number.

229378531073387 is a deficient number, since it is larger than the sum of its proper divisors (1674295847389).

229378531073387 is a wasteful number, since it uses less digits than its factorization.

229378531073387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674295847388.

The product of its (nonzero) digits is 320060160, while the sum is 68.

The spelling of 229378531073387 in words is "two hundred twenty-nine trillion, three hundred seventy-eight billion, five hundred thirty-one million, seventy-three thousand, three hundred eighty-seven".