77536028390 has 32 divisors (see below), whose sum is σ = 140880548160. Its totient is φ = 30722177664.

The previous prime is 77536028347. The next prime is 77536028441. The reversal of 77536028390 is 9382063577.

It is a happy number.

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, 6574439 + ... + 6586221.

It is an arithmetic number, because the mean of its divisors is an integer number (4402517130).

Almost surely, 2^77536028390 is an apocalyptic number.

77536028390 is a deficient number, since it is larger than the sum of its proper divisors (63344519770).

77536028390 is a wasteful number, since it uses less digits than its factorization.

77536028390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17936.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 77536028390 in words is "seventy-seven billion, five hundred thirty-six million, twenty-eight thousand, three hundred ninety".