15378876526379 has 2 divisors, whose sum is σ = 15378876526380. Its totient is φ = 15378876526378.

The previous prime is 15378876526369. The next prime is 15378876526397. The reversal of 15378876526379 is 97362567887351.

Together with next prime (15378876526397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15378876526379 is a prime.

It is a super-2 number, since 2×15378876526379² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15378876526319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7689438263189 + 7689438263190.

It is an arithmetic number, because the mean of its divisors is an integer number (7689438263190).

Almost surely, 2^{15378876526379} is an apocalyptic number.

15378876526379 is a deficient number, since it is larger than the sum of its proper divisors (1).

15378876526379 is an equidigital number, since it uses as much as digits as its factorization.

15378876526379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200601600, while the sum is 77.

The spelling of 15378876526379 in words is "fifteen trillion, three hundred seventy-eight billion, eight hundred seventy-six million, five hundred twenty-six thousand, three hundred seventy-nine".