8153813812920 has 128 divisors (see below), whose sum is σ = 26006586278400. Its totient is φ = 2040571579904.

The previous prime is 8153813812889. The next prime is 8153813812927. The reversal of 8153813812920 is 292183183518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8153813812927) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27724290 + ... + 28016849.

It is an arithmetic number, because the mean of its divisors is an integer number (203176455300).

Almost surely, 2^{8153813812920} is an apocalyptic number.

It is an amenable number.

8153813812920 is an abundant number, since it is smaller than the sum of its proper divisors (17852772465480).

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

8153813812920 is a wasteful number, since it uses less digits than its factorization.

8153813812920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55741229 (or 55741225 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 8153813812920 in words is "eight trillion, one hundred fifty-three billion, eight hundred thirteen million, eight hundred twelve thousand, nine hundred twenty".