2630778194 has 16 divisors (see below), whose sum is σ = 4365544896. Its totient is φ = 1178965200.

The previous prime is 2630778167. The next prime is 2630778197. The reversal of 2630778194 is 4918770362.

It is not an unprimeable number, because it can be changed into a prime (2630778197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840557 + ... + 843680.

It is an arithmetic number, because the mean of its divisors is an integer number (272846556).

Almost surely, 2^2630778194 is an apocalyptic number.

2630778194 is a deficient number, since it is larger than the sum of its proper divisors (1734766702).

2630778194 is a wasteful number, since it uses less digits than its factorization.

2630778194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684321.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 2630778194 is about 51291.1122320427. The cubic root of 2630778194 is about 1380.4735114562.

The spelling of 2630778194 in words is "two billion, six hundred thirty million, seven hundred seventy-eight thousand, one hundred ninety-four".