1378612715415 has 32 divisors (see below), whose sum is σ = 2377457381376. Its totient is φ = 678129751680.

The previous prime is 1378612715407. The next prime is 1378612715461. The reversal of 1378612715415 is 5145172168731.

It is not a de Polignac number, because 1378612715415 - 2³ = 1378612715407 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2746551 + ... + 3209480.

It is an arithmetic number, because the mean of its divisors is an integer number (74295543168).

Almost surely, 2^{1378612715415} is an apocalyptic number.

1378612715415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1378612715415 is a deficient number, since it is larger than the sum of its proper divisors (998844665961).

1378612715415 is a wasteful number, since it uses less digits than its factorization.

1378612715415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5957239.

The product of its digits is 1411200, while the sum is 51.

The spelling of 1378612715415 in words is "one trillion, three hundred seventy-eight billion, six hundred twelve million, seven hundred fifteen thousand, four hundred fifteen".