8465213538 has 24 divisors (see below), whose sum is σ = 18392400000. Its totient is φ = 2813875704.

The previous prime is 8465213521. The next prime is 8465213591. The reversal of 8465213538 is 8353125648.

It is a junction number, because it is equal to n+sod(n) for n = 8465213493 and 8465213502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 648538 + ... + 661461.

It is an arithmetic number, because the mean of its divisors is an integer number (766350000).

Almost surely, 2^8465213538 is an apocalyptic number.

8465213538 is an abundant number, since it is smaller than the sum of its proper divisors (9927186462).

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

8465213538 is a wasteful number, since it uses less digits than its factorization.

8465213538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310366 (or 1310363 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 8465213538 is about 92006.5950788312. The cubic root of 8465213538 is about 2038.0396984899.

The spelling of 8465213538 in words is "eight billion, four hundred sixty-five million, two hundred thirteen thousand, five hundred thirty-eight".