2378639769 has 32 divisors (see below), whose sum is σ = 3607511040. Its totient is φ = 1380859200.

The previous prime is 2378639743. The next prime is 2378639771. The reversal of 2378639769 is 9679368732.

2378639769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2378639769 - 2⁹ = 2378639257 is a prime.

It is a super-2 number, since 2×2378639769² = 11315854301336746722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2378639069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111754 + ... + 131324.

It is an arithmetic number, because the mean of its divisors is an integer number (112734720).

Almost surely, 2^2378639769 is an apocalyptic number.

2378639769 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2378639769 is a deficient number, since it is larger than the sum of its proper divisors (1228871271).

2378639769 is a wasteful number, since it uses less digits than its factorization.

2378639769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19741.

The product of its digits is 20575296, while the sum is 60.

The square root of 2378639769 is about 48771.3006695536. The cubic root of 2378639769 is about 1334.8820459967.

The spelling of 2378639769 in words is "two billion, three hundred seventy-eight million, six hundred thirty-nine thousand, seven hundred sixty-nine".