2078278419 has 32 divisors (see below), whose sum is σ = 3278258176. Its totient is φ = 1146337920.

The previous prime is 2078278399. The next prime is 2078278421. The reversal of 2078278419 is 9148728702.

It is not a de Polignac number, because 2078278419 - 2¹¹ = 2078276371 is a prime.

It is a super-2 number, since 2×2078278419² = 8638482373762279122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2078278429) 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, 88149 + ... + 109209.

It is an arithmetic number, because the mean of its divisors is an integer number (102445568).

Almost surely, 2^2078278419 is an apocalyptic number.

2078278419 is a deficient number, since it is larger than the sum of its proper divisors (1199979757).

2078278419 is a wasteful number, since it uses less digits than its factorization.

2078278419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21235.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 2078278419 is about 45588.1390166346. The cubic root of 2078278419 is about 1276.1485831356.

The spelling of 2078278419 in words is "two billion, seventy-eight million, two hundred seventy-eight thousand, four hundred nineteen".