25682626545 has 48 divisors (see below), whose sum is σ = 41999772672. Its totient is φ = 13401099520.

The previous prime is 25682626537. The next prime is 25682626547. The reversal of 25682626545 is 54562628652.

It is not a de Polignac number, because 25682626545 - 2³ = 25682626537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25682626547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12165040 + ... + 12167150.

It is an arithmetic number, because the mean of its divisors is an integer number (874995264).

Almost surely, 2^25682626545 is an apocalyptic number.

It is an amenable number.

25682626545 is a deficient number, since it is larger than the sum of its proper divisors (16317146127).

25682626545 is a wasteful number, since it uses less digits than its factorization.

25682626545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470 (or 2411 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 51.

The spelling of 25682626545 in words is "twenty-five billion, six hundred eighty-two million, six hundred twenty-six thousand, five hundred forty-five".