1378064319 has 32 divisors (see below), whose sum is σ = 2052864000. Its totient is φ = 817173504.

The previous prime is 1378064309. The next prime is 1378064321. The reversal of 1378064319 is 9134608731.

It is not a de Polignac number, because 1378064319 - 2¹¹ = 1378062271 is a prime.

It is a super-2 number, since 2×1378064319² = 3798122534601867522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378064309) 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, 462667 + ... + 465635.

It is an arithmetic number, because the mean of its divisors is an integer number (64152000).

Almost surely, 2^1378064319 is an apocalyptic number.

1378064319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1378064319 is a deficient number, since it is larger than the sum of its proper divisors (674799681).

1378064319 is a wasteful number, since it uses less digits than its factorization.

1378064319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 1378064319 is about 37122.2887090761. The cubic root of 1378064319 is about 1112.8154911139.

The spelling of 1378064319 in words is "one billion, three hundred seventy-eight million, sixty-four thousand, three hundred nineteen".