25486184965 has 16 divisors (see below), whose sum is σ = 30965865840. Its totient is φ = 20135027200.

The previous prime is 25486184963. The next prime is 25486184989. The reversal of 25486184965 is 56948168452.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 553143361 + 24933041604 = 23519^2 + 157902^2 .

It is not a de Polignac number, because 25486184965 - 2¹ = 25486184963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25486184963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131577 + ... + 261313.

It is an arithmetic number, because the mean of its divisors is an integer number (1935366615).

Almost surely, 2^25486184965 is an apocalyptic number.

It is an amenable number.

25486184965 is a deficient number, since it is larger than the sum of its proper divisors (5479680875).

25486184965 is a wasteful number, since it uses less digits than its factorization.

25486184965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130232.

The product of its digits is 16588800, while the sum is 58.

The spelling of 25486184965 in words is "twenty-five billion, four hundred eighty-six million, one hundred eighty-four thousand, nine hundred sixty-five".