2378279459 has 2 divisors, whose sum is σ = 2378279460. Its totient is φ = 2378279458.

The previous prime is 2378279417. The next prime is 2378279471. The reversal of 2378279459 is 9549728732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2378279459 - 2¹² = 2378275363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2378269459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1189139729 + 1189139730.

It is an arithmetic number, because the mean of its divisors is an integer number (1189139730).

Almost surely, 2^2378279459 is an apocalyptic number.

2378279459 is a deficient number, since it is larger than the sum of its proper divisors (1).

2378279459 is an equidigital number, since it uses as much as digits as its factorization.

2378279459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 56.

The square root of 2378279459 is about 48767.6066564682. The cubic root of 2378279459 is about 1334.8146411373.

The spelling of 2378279459 in words is "two billion, three hundred seventy-eight million, two hundred seventy-nine thousand, four hundred fifty-nine".