2563943958 has 24 divisors (see below), whose sum is σ = 5559824088. Its totient is φ = 853938432.

The previous prime is 2563943957. The next prime is 2563943959. The reversal of 2563943958 is 8593493652.

It is an interprime number because it is at equal distance from previous prime (2563943957) and next prime (2563943959).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563943957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36616 + ... + 80427.

It is an arithmetic number, because the mean of its divisors is an integer number (231659337).

Almost surely, 2^2563943958 is an apocalyptic number.

2563943958 is an abundant number, since it is smaller than the sum of its proper divisors (2995880130).

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

2563943958 is a wasteful number, since it uses less digits than its factorization.

2563943958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118268 (or 118265 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The square root of 2563943958 is about 50635.4022201858. The cubic root of 2563943958 is about 1368.6829045237.

The spelling of 2563943958 in words is "two billion, five hundred sixty-three million, nine hundred forty-three thousand, nine hundred fifty-eight".