2778490558 has 8 divisors (see below), whose sum is σ = 4167995328. Its totient is φ = 1389158784.

The previous prime is 2778490553. The next prime is 2778490607. The reversal of 2778490558 is 8550948772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2778490558³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2778490499 and 2778490508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2778490553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10035 + ... + 75217.

It is an arithmetic number, because the mean of its divisors is an integer number (520999416).

Almost surely, 2^2778490558 is an apocalyptic number.

2778490558 is a deficient number, since it is larger than the sum of its proper divisors (1389504770).

2778490558 is a wasteful number, since it uses less digits than its factorization.

2778490558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86498.

The product of its (nonzero) digits is 5644800, while the sum is 55.

The square root of 2778490558 is about 52711.3892626631. The cubic root of 2778490558 is about 1405.8413349780.

The spelling of 2778490558 in words is "two billion, seven hundred seventy-eight million, four hundred ninety thousand, five hundred fifty-eight".