77530825804 has 12 divisors (see below), whose sum is σ = 143660059704. Its totient is φ = 36485094464.

The previous prime is 77530825793. The next prime is 77530825817. The reversal of 77530825804 is 40852803577.

It is a super-2 number, since 2×77530825804² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 570079534 + ... + 570079669.

It is an arithmetic number, because the mean of its divisors is an integer number (11971671642).

Almost surely, 2^77530825804 is an apocalyptic number.

It is an amenable number.

77530825804 is a deficient number, since it is larger than the sum of its proper divisors (66129233900).

77530825804 is a wasteful number, since it uses less digits than its factorization.

77530825804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140159224 (or 1140159222 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 49.

The spelling of 77530825804 in words is "seventy-seven billion, five hundred thirty million, eight hundred twenty-five thousand, eight hundred four".