7838280961 has 16 divisors (see below), whose sum is σ = 9036776448. Its totient is φ = 6659730000.

The previous prime is 7838280959. The next prime is 7838280971. The reversal of 7838280961 is 1690828387.

It is not a de Polignac number, because 7838280961 - 2¹ = 7838280959 is a prime.

It is a super-2 number, since 2×7838280961² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7838280899 and 7838280908.

It is not an unprimeable number, because it can be changed into a prime (7838280971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360156 + ... + 381298.

It is an arithmetic number, because the mean of its divisors is an integer number (564798528).

Almost surely, 2^7838280961 is an apocalyptic number.

It is an amenable number.

7838280961 is a deficient number, since it is larger than the sum of its proper divisors (1198495487).

7838280961 is a wasteful number, since it uses less digits than its factorization.

7838280961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21612.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 7838280961 is about 88534.0666692771. The cubic root of 7838280961 is about 1986.4315704412.

The spelling of 7838280961 in words is "seven billion, eight hundred thirty-eight million, two hundred eighty thousand, nine hundred sixty-one".