77730013536573 has 16 divisors (see below), whose sum is σ = 105339443112000. Its totient is φ = 50970303079680.

The previous prime is 77730013536559. The next prime is 77730013536607. The reversal of 77730013536573 is 37563531003777.

It is a happy number.

It is not a de Polignac number, because 77730013536573 - 2⁸ = 77730013536317 is a prime.

It is a super-4 number, since 4×77730013536573⁴ (a number of 57 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77730013532573) 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, 57936853 + ... + 59263301.

It is an arithmetic number, because the mean of its divisors is an integer number (6583715194500).

Almost surely, 2^{77730013536573} is an apocalyptic number.

It is an amenable number.

77730013536573 is a deficient number, since it is larger than the sum of its proper divisors (27609429575427).

77730013536573 is a wasteful number, since it uses less digits than its factorization.

77730013536573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646732.

The product of its (nonzero) digits is 29172150, while the sum is 57.

The spelling of 77730013536573 in words is "seventy-seven trillion, seven hundred thirty billion, thirteen million, five hundred thirty-six thousand, five hundred seventy-three".