73777070755 has 4 divisors (see below), whose sum is σ = 88532484912. Its totient is φ = 59021656600.

The previous prime is 73777070753. The next prime is 73777070771. The reversal of 73777070755 is 55707077737.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 73777070755 - 2¹ = 73777070753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73777070696 and 73777070705.

It is not an unprimeable number, because it can be changed into a prime (73777070753) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7377707071 + ... + 7377707080.

It is an arithmetic number, because the mean of its divisors is an integer number (22133121228).

Almost surely, 2^73777070755 is an apocalyptic number.

73777070755 is a deficient number, since it is larger than the sum of its proper divisors (14755414157).

73777070755 is a wasteful number, since it uses less digits than its factorization.

73777070755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14755414156.

The product of its (nonzero) digits is 8823675, while the sum is 55.

The spelling of 73777070755 in words is "seventy-three billion, seven hundred seventy-seven million, seventy thousand, seven hundred fifty-five".