8778155135048 has 64 divisors (see below), whose sum is σ = 17775331450800. Its totient is φ = 4039982853120.

The previous prime is 8778155135033. The next prime is 8778155135083. The reversal of 8778155135048 is 8405315518778.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4043083390564 + 4735071744484 = 2010742^2 + 2176022^2 .

It is a super-2 number, since 2×8778155135048² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346826618 + ... + 346851926.

Almost surely, 2^{8778155135048} is an apocalyptic number.

It is an amenable number.

8778155135048 is an abundant number, since it is smaller than the sum of its proper divisors (8997176315752).

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

8778155135048 is a wasteful number, since it uses less digits than its factorization.

8778155135048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34642 (or 34638 counting only the distinct ones).

The product of its (nonzero) digits is 37632000, while the sum is 62.

The spelling of 8778155135048 in words is "eight trillion, seven hundred seventy-eight billion, one hundred fifty-five million, one hundred thirty-five thousand, forty-eight".