9281138421554 has 32 divisors (see below), whose sum is σ = 14435583390144. Its totient is φ = 4472063205120.

The previous prime is 9281138421523. The next prime is 9281138421571. The reversal of 9281138421554 is 4551248311829.

It is a super-2 number, since 2×9281138421554² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9281138421496 and 9281138421505.

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, 40196822 + ... + 40427054.

It is an arithmetic number, because the mean of its divisors is an integer number (451111980942).

Almost surely, 2^{9281138421554} is an apocalyptic number.

9281138421554 is a deficient number, since it is larger than the sum of its proper divisors (5154444968590).

9281138421554 is a wasteful number, since it uses less digits than its factorization.

9281138421554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236282.

The product of its digits is 2764800, while the sum is 53.

The spelling of 9281138421554 in words is "nine trillion, two hundred eighty-one billion, one hundred thirty-eight million, four hundred twenty-one thousand, five hundred fifty-four".