82470788450 has 54 divisors (see below), whose sum is σ = 163017958761. Its totient is φ = 31034830080.

The previous prime is 82470788443. The next prime is 82470788483. The reversal of 82470788450 is 5488707428.

It can be written as a sum of positive squares in 14 ways, for example, as 1491272689 + 80979515761 = 38617^2 + 284569^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=203065.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82470788392 and 82470788401.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 34519856 + ... + 34522244.

Almost surely, 2^82470788450 is an apocalyptic number.

82470788450 is a deficient number, since it is larger than the sum of its proper divisors (80547170311).

82470788450 is an equidigital number, since it uses as much as digits as its factorization.

With its predecessor (82470788449) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (2413).

82470788450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824 (or 2413 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 53.

It can be divided in two parts, 8247078 and 8450, that added together give a palindrome (8255528).

The spelling of 82470788450 in words is "eighty-two billion, four hundred seventy million, seven hundred eighty-eight thousand, four hundred fifty".