9881406469 has 12 divisors (see below), whose sum is σ = 10934617248. Its totient is φ = 8854084400.

The previous prime is 9881406391. The next prime is 9881406481. The reversal of 9881406469 is 9646041889.

It is not a de Polignac number, because 9881406469 - 2¹⁹ = 9880882181 is a prime.

It is a super-2 number, since 2×9881406469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9881406499) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2776239 + ... + 2779795.

It is an arithmetic number, because the mean of its divisors is an integer number (911218104).

Almost surely, 2^9881406469 is an apocalyptic number.

It is an amenable number.

9881406469 is a deficient number, since it is larger than the sum of its proper divisors (1053210779).

9881406469 is an frugal number, since it uses more digits than its factorization.

9881406469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196 (or 3639 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 9881406469 is about 99405.2637891978. The cubic root of 9881406469 is about 2145.8840648842.

The spelling of 9881406469 in words is "nine billion, eight hundred eighty-one million, four hundred six thousand, four hundred sixty-nine".