77753532830 has 32 divisors (see below), whose sum is σ = 145509829920. Its totient is φ = 29889953280.

The previous prime is 77753532827. The next prime is 77753532841. The reversal of 77753532830 is 3823535777.

It is a super-2 number, since 2×77753532830² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387775 + ... + 1442714.

It is an arithmetic number, because the mean of its divisors is an integer number (4547182185).

Almost surely, 2^77753532830 is an apocalyptic number.

77753532830 is a deficient number, since it is larger than the sum of its proper divisors (67756297090).

77753532830 is a wasteful number, since it uses less digits than its factorization.

77753532830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830604.

The product of its (nonzero) digits is 3704400, while the sum is 50.

The spelling of 77753532830 in words is "seventy-seven billion, seven hundred fifty-three million, five hundred thirty-two thousand, eight hundred thirty".