378878132237 has 4 divisors (see below), whose sum is σ = 413321598816. Its totient is φ = 344434665660.

The previous prime is 378878132231. The next prime is 378878132239. The reversal of 378878132237 is 732231878873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 378878132237 - 2²⁰ = 378877083661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378878132231) 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, 17221733273 + ... + 17221733294.

It is an arithmetic number, because the mean of its divisors is an integer number (103330399704).

Almost surely, 2^378878132237 is an apocalyptic number.

It is an amenable number.

378878132237 is a deficient number, since it is larger than the sum of its proper divisors (34443466579).

378878132237 is a wasteful number, since it uses less digits than its factorization.

378878132237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34443466578.

The product of its digits is 18966528, while the sum is 59.

It can be divided in two parts, 378878 and 132237, that added together give a palindrome (511115).

The spelling of 378878132237 in words is "three hundred seventy-eight billion, eight hundred seventy-eight million, one hundred thirty-two thousand, two hundred thirty-seven".