378834527231 has 4 divisors (see below), whose sum is σ = 379958665632. Its totient is φ = 377710388832.

The previous prime is 378834527221. The next prime is 378834527237. The reversal of 378834527231 is 132725438873.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132725438873 = 1867 ⋅71090219.

It is a cyclic number.

It is not a de Polignac number, because 378834527231 - 2¹⁸ = 378834265087 is a prime.

It is a super-2 number, since 2×378834527231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378834527237) 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, 562068695 + ... + 562069368.

It is an arithmetic number, because the mean of its divisors is an integer number (94989666408).

Almost surely, 2^378834527231 is an apocalyptic number.

378834527231 is a deficient number, since it is larger than the sum of its proper divisors (1124138401).

378834527231 is a wasteful number, since it uses less digits than its factorization.

378834527231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124138400.

The product of its digits is 6773760, while the sum is 53.

The spelling of 378834527231 in words is "three hundred seventy-eight billion, eight hundred thirty-four million, five hundred twenty-seven thousand, two hundred thirty-one".