9913431455 has 16 divisors (see below), whose sum is σ = 11974362624. Its totient is φ = 7878638880.

The previous prime is 9913431449. The next prime is 9913431467. The reversal of 9913431455 is 5541343199.

It is a de Polignac number, because none of the positive numbers 2^k-9913431455 is a prime.

It is a super-2 number, since 2×9913431455² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 2512214 + ... + 2516156.

It is an arithmetic number, because the mean of its divisors is an integer number (748397664).

Almost surely, 2^9913431455 is an apocalyptic number.

9913431455 is a deficient number, since it is larger than the sum of its proper divisors (2060931169).

9913431455 is a wasteful number, since it uses less digits than its factorization.

9913431455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7126.

The product of its digits is 291600, while the sum is 44.

The square root of 9913431455 is about 99566.2164340897. The cubic root of 9913431455 is about 2148.1997878426.

The spelling of 9913431455 in words is "nine billion, nine hundred thirteen million, four hundred thirty-one thousand, four hundred fifty-five".