25434424458 has 48 divisors (see below), whose sum is σ = 56052731592. Its totient is φ = 8332992000.

The previous prime is 25434424441. The next prime is 25434424487. The reversal of 25434424458 is 85442443452.

25434424458 is a `hidden beast` number, since 2 + 543 + 44 + 24 + 45 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 22106634489 + 3327789969 = 148683^2 + 57687^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1618318 + ... + 1633958.

Almost surely, 2^25434424458 is an apocalyptic number.

25434424458 is an abundant number, since it is smaller than the sum of its proper divisors (30618307134).

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

25434424458 is a wasteful number, since it uses less digits than its factorization.

25434424458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17191 (or 17188 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 45.

The spelling of 25434424458 in words is "twenty-five billion, four hundred thirty-four million, four hundred twenty-four thousand, four hundred fifty-eight".