9378558855 has 48 divisors (see below), whose sum is σ = 16480769760. Its totient is φ = 4933004544.

The previous prime is 9378558853. The next prime is 9378558863. The reversal of 9378558855 is 5588558739.

9378558855 is a `hidden beast` number, since 9 + 3 + 78 + 558 + 8 + 5 + 5 = 666.

It is not a de Polignac number, because 9378558855 - 2¹ = 9378558853 is a prime.

It is a super-2 number, since 2×9378558855² (a number of 21 digits) contains 22 as substring.

Its product of digits (60480000) is a multiple of the sum of its prime factors (4480).

It is a junction number, because it is equal to n+sod(n) for n = 9378558792 and 9378558801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9378558853) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2526741 + ... + 2530449.

It is an arithmetic number, because the mean of its divisors is an integer number (343349370).

Almost surely, 2^9378558855 is an apocalyptic number.

9378558855 is a deficient number, since it is larger than the sum of its proper divisors (7102210905).

9378558855 is a wasteful number, since it uses less digits than its factorization.

9378558855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480 (or 4477 counting only the distinct ones).

The product of its digits is 60480000, while the sum is 63.

The square root of 9378558855 is about 96842.9597596026. The cubic root of 9378558855 is about 2108.8484432382.

The spelling of 9378558855 in words is "nine billion, three hundred seventy-eight million, five hundred fifty-eight thousand, eight hundred fifty-five".