102454320465 has 48 divisors (see below), whose sum is σ = 207907330176. Its totient is φ = 45693907200.

The previous prime is 102454320457. The next prime is 102454320467. The reversal of 102454320465 is 564023454201.

102454320465 is a `hidden beast` number, since 10 + 24 + 543 + 20 + 4 + 65 = 666.

It is not a de Polignac number, because 102454320465 - 2³ = 102454320457 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102454320467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3953571 + ... + 3979400.

It is an arithmetic number, because the mean of its divisors is an integer number (4331402712).

Almost surely, 2^102454320465 is an apocalyptic number.

102454320465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102454320465 is an abundant number, since it is smaller than the sum of its proper divisors (105453009711).

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

102454320465 is a wasteful number, since it uses less digits than its factorization.

102454320465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7933030 (or 7933027 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 102454320465 its reverse (564023454201), we get a palindrome (666477774666).

The spelling of 102454320465 in words is "one hundred two billion, four hundred fifty-four million, three hundred twenty thousand, four hundred sixty-five".