7632826778 has 16 divisors (see below), whose sum is σ = 11535149736. Its totient is φ = 3787852800.

The previous prime is 7632826777. The next prime is 7632826807. The reversal of 7632826778 is 8776282367.

It can be written as a sum of positive squares in 4 ways, for example, as 6616683649 + 1016143129 = 81343^2 + 31877^2 .

It is a super-2 number, since 2×7632826778² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7632826777) 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 7 ways as a sum of consecutive naturals, for example, 186578 + ... + 223778.

Almost surely, 2^7632826778 is an apocalyptic number.

7632826778 is a deficient number, since it is larger than the sum of its proper divisors (3902322958).

7632826778 is a wasteful number, since it uses less digits than its factorization.

7632826778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37969.

The product of its digits is 9483264, while the sum is 56.

The square root of 7632826778 is about 87366.0504887339. The cubic root of 7632826778 is about 1968.9218058408.

The spelling of 7632826778 in words is "seven billion, six hundred thirty-two million, eight hundred twenty-six thousand, seven hundred seventy-eight".