9147755979 has 20 divisors (see below), whose sum is σ = 14384388040. Its totient is φ = 5777529120.

The previous prime is 9147755971. The next prime is 9147755999. The reversal of 9147755979 is 9795577419.

9147755979 is a `hidden beast` number, since 9 + 1 + 4 + 7 + 7 + 559 + 79 = 666.

It is not a de Polignac number, because 9147755979 - 2³ = 9147755971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9147755971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2970442 + ... + 2973519.

It is an arithmetic number, because the mean of its divisors is an integer number (719219402).

Almost surely, 2^9147755979 is an apocalyptic number.

9147755979 is a deficient number, since it is larger than the sum of its proper divisors (5236632061).

9147755979 is a wasteful number, since it uses less digits than its factorization.

9147755979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5943992 (or 5943983 counting only the distinct ones).

The product of its digits is 25004700, while the sum is 63.

The square root of 9147755979 is about 95643.9019436158. The cubic root of 9147755979 is about 2091.4052330138.

It can be divided in two parts, 91477 and 55979, that added together give a square (147456 = 384²).

The spelling of 9147755979 in words is "nine billion, one hundred forty-seven million, seven hundred fifty-five thousand, nine hundred seventy-nine".