825120878419 has 2 divisors, whose sum is σ = 825120878420. Its totient is φ = 825120878418.

The previous prime is 825120878381. The next prime is 825120878429. The reversal of 825120878419 is 914878021528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825120878419 - 2¹⁹ = 825120354131 is a prime.

It is a super-2 number, since 2×825120878419² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 825120878419.

It is not a weakly prime, because it can be changed into another prime (825120878429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412560439209 + 412560439210.

It is an arithmetic number, because the mean of its divisors is an integer number (412560439210).

Almost surely, 2^825120878419 is an apocalyptic number.

825120878419 is a deficient number, since it is larger than the sum of its proper divisors (1).

825120878419 is an equidigital number, since it uses as much as digits as its factorization.

825120878419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 55.

The spelling of 825120878419 in words is "eight hundred twenty-five billion, one hundred twenty million, eight hundred seventy-eight thousand, four hundred nineteen".