8154535378322 has 16 divisors (see below), whose sum is σ = 12952647179640. Its totient is φ = 3837035440128.

The previous prime is 8154535378259. The next prime is 8154535378333. The reversal of 8154535378322 is 2238735354518.

It can be written as a sum of positive squares in 4 ways, for example, as 7422567864721 + 731967513601 = 2724439^2 + 855551^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11943383 + ... + 12607674.

Almost surely, 2^{8154535378322} is an apocalyptic number.

8154535378322 is a deficient number, since it is larger than the sum of its proper divisors (4798111801318).

8154535378322 is a wasteful number, since it uses less digits than its factorization.

8154535378322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24560845.

The product of its digits is 24192000, while the sum is 56.

The spelling of 8154535378322 in words is "eight trillion, one hundred fifty-four billion, five hundred thirty-five million, three hundred seventy-eight thousand, three hundred twenty-two".