2199049280478 has 12 divisors (see below), whose sum is σ = 4764606774408. Its totient is φ = 733016426820.

The previous prime is 2199049280471. The next prime is 2199049280479. The reversal of 2199049280478 is 8740829409912.

2199049280478 is a `hidden beast` number, since 2 + 19 + 90 + 49 + 28 + 0 + 478 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199049280471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61084702218 + ... + 61084702253.

It is an arithmetic number, because the mean of its divisors is an integer number (397050564534).

Almost surely, 2^{2199049280478} is an apocalyptic number.

2199049280478 is an abundant number, since it is smaller than the sum of its proper divisors (2565557493930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2199049280478 is a wasteful number, since it uses less digits than its factorization.

2199049280478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122169404479 (or 122169404476 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 2199049280478 in words is "two trillion, one hundred ninety-nine billion, forty-nine million, two hundred eighty thousand, four hundred seventy-eight".