9772885478 has 16 divisors (see below), whose sum is σ = 14837230080. Its totient is φ = 4827240000.

The previous prime is 9772885477. The next prime is 9772885481. The reversal of 9772885478 is 8745882779.

It is a super-2 number, since 2×9772885478² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9772885477) 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, 181028 + ... + 228728.

It is an arithmetic number, because the mean of its divisors is an integer number (927326880).

Almost surely, 2^9772885478 is an apocalyptic number.

9772885478 is a deficient number, since it is larger than the sum of its proper divisors (5064344602).

9772885478 is a wasteful number, since it uses less digits than its factorization.

9772885478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48943.

The product of its digits is 63221760, while the sum is 65.

The square root of 9772885478 is about 98857.9054906587. The cubic root of 9772885478 is about 2137.9995191469. Note that the first 3 decimals are identical.

The spelling of 9772885478 in words is "nine billion, seven hundred seventy-two million, eight hundred eighty-five thousand, four hundred seventy-eight".