378915296269 has 4 divisors (see below), whose sum is σ = 378916693344. Its totient is φ = 378913899196.

The previous prime is 378915296267. The next prime is 378915296351. The reversal of 378915296269 is 962692519873.

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, and also an emirpimes, since its reverse is a distinct semiprime: 962692519873 = 7 ⋅137527502839.

It is a cyclic number.

It is not a de Polignac number, because 378915296269 - 2¹ = 378915296267 is a prime.

It is a super-2 number, since 2×378915296269² (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 (378915296267) 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, 146047 + ... + 882700.

It is an arithmetic number, because the mean of its divisors is an integer number (94729173336).

Almost surely, 2^378915296269 is an apocalyptic number.

It is an amenable number.

378915296269 is a deficient number, since it is larger than the sum of its proper divisors (1397075).

378915296269 is a wasteful number, since it uses less digits than its factorization.

378915296269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397074.

The product of its digits is 88179840, while the sum is 67.

The spelling of 378915296269 in words is "three hundred seventy-eight billion, nine hundred fifteen million, two hundred ninety-six thousand, two hundred sixty-nine".