2563430634 has 24 divisors (see below), whose sum is σ = 5558492160. Its totient is φ = 853801128.

The previous prime is 2563430593. The next prime is 2563430671. The reversal of 2563430634 is 4360343652.

2563430634 is a `hidden beast` number, since 2 + 563 + 4 + 30 + 63 + 4 = 666.

2563430634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32652 + ... + 78695.

It is an arithmetic number, because the mean of its divisors is an integer number (231603840).

Almost surely, 2^2563430634 is an apocalyptic number.

2563430634 is an abundant number, since it is smaller than the sum of its proper divisors (2995061526).

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

2563430634 is a wasteful number, since it uses less digits than its factorization.

2563430634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112634 (or 112631 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

The square root of 2563430634 is about 50630.3331413097. Note that the first 3 decimals coincide. The cubic root of 2563430634 is about 1368.5915576654.

It can be divided in two parts, 256 and 3430634, that added together give a triangular number (3430890 = T₂₆₁₉).

The spelling of 2563430634 in words is "two billion, five hundred sixty-three million, four hundred thirty thousand, six hundred thirty-four".