838251621053 has 8 divisors (see below), whose sum is σ = 1045092930240. Its totient is φ = 653183081280.

The previous prime is 838251621047. The next prime is 838251621071. The reversal of 838251621053 is 350126152838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 838251621053 - 2⁸ = 838251620797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 838251620995 and 838251621013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838251621083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5443192268 + ... + 5443192421.

It is an arithmetic number, because the mean of its divisors is an integer number (130636616280).

Almost surely, 2^838251621053 is an apocalyptic number.

It is an amenable number.

838251621053 is a deficient number, since it is larger than the sum of its proper divisors (206841309187).

838251621053 is a wasteful number, since it uses less digits than its factorization.

838251621053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10886384707.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 838251621053 in words is "eight hundred thirty-eight billion, two hundred fifty-one million, six hundred twenty-one thousand, fifty-three".