213835378254 has 16 divisors (see below), whose sum is σ = 452827860048. Its totient is φ = 67085608832.

The previous prime is 213835378247. The next prime is 213835378259. The reversal of 213835378254 is 452873538312.

It is a super-3 number, since 3×213835378254³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 213835378197 and 213835378206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213835378259) 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, 1048212537 + ... + 1048212740.

It is an arithmetic number, because the mean of its divisors is an integer number (28301741253).

Almost surely, 2^213835378254 is an apocalyptic number.

213835378254 is an abundant number, since it is smaller than the sum of its proper divisors (238992481794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213835378254 is a wasteful number, since it uses less digits than its factorization.

213835378254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096425299.

The product of its digits is 4838400, while the sum is 51.

The spelling of 213835378254 in words is "two hundred thirteen billion, eight hundred thirty-five million, three hundred seventy-eight thousand, two hundred fifty-four".