2494840778 has 8 divisors (see below), whose sum is σ = 3743588772. Its totient is φ = 1246977856.

The previous prime is 2494840759. The next prime is 2494840787. The reversal of 2494840778 is 8770484942.

It can be written as a sum of positive squares in 2 ways, for example, as 2462839129 + 32001649 = 49627^2 + 5657^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214175 + ... + 225522.

Almost surely, 2^2494840778 is an apocalyptic number.

2494840778 is a deficient number, since it is larger than the sum of its proper divisors (1248747994).

2494840778 is a wasteful number, since it uses less digits than its factorization.

2494840778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442536.

The product of its (nonzero) digits is 3612672, while the sum is 53.

The square root of 2494840778 is about 49948.3811349277. The cubic root of 2494840778 is about 1356.2745464549.

The spelling of 2494840778 in words is "two billion, four hundred ninety-four million, eight hundred forty thousand, seven hundred seventy-eight".