238764812853 has 16 divisors (see below), whose sum is σ = 368816099456. Its totient is φ = 134568034560.

The previous prime is 238764812789. The next prime is 238764812863. The reversal of 238764812853 is 358218467832.

It is not a de Polignac number, because 238764812853 - 2⁶ = 238764812789 is a prime.

It is a super-2 number, since 2×238764812853² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 238764812793 and 238764812802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238764812863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77873488 + ... + 77876553.

It is an arithmetic number, because the mean of its divisors is an integer number (23051006216).

Almost surely, 2^238764812853 is an apocalyptic number.

It is an amenable number.

238764812853 is a deficient number, since it is larger than the sum of its proper divisors (130051286603).

238764812853 is a wasteful number, since it uses less digits than its factorization.

238764812853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155750124.

The product of its digits is 15482880, while the sum is 57.

The spelling of 238764812853 in words is "two hundred thirty-eight billion, seven hundred sixty-four million, eight hundred twelve thousand, eight hundred fifty-three".