9477979777 has 8 divisors (see below), whose sum is σ = 10833497792. Its totient is φ = 8122842000.

The previous prime is 9477979739. The next prime is 9477979793. The reversal of 9477979777 is 7779797749.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9477979777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9477979727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39474 + ... + 143227.

It is an arithmetic number, because the mean of its divisors is an integer number (1354187224).

Almost surely, 2^9477979777 is an apocalyptic number.

It is an amenable number.

9477979777 is a deficient number, since it is larger than the sum of its proper divisors (1355518015).

9477979777 is a wasteful number, since it uses less digits than its factorization.

9477979777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190119.

The product of its digits is 343064484, while the sum is 73.

The square root of 9477979777 is about 97354.9165527864. The cubic root of 9477979777 is about 2116.2741440598.

The spelling of 9477979777 in words is "nine billion, four hundred seventy-seven million, nine hundred seventy-nine thousand, seven hundred seventy-seven".