77505550050 has 48 divisors (see below), whose sum is σ = 192240722592. Its totient is φ = 20665248000.

The previous prime is 77505550043. The next prime is 77505550061. The reversal of 77505550050 is 5005550577.

It is a super-2 number, since 2×77505550050² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77505549990 and 77505550008.

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 23 ways as a sum of consecutive naturals, for example, 1170325 + ... + 1234775.

It is an arithmetic number, because the mean of its divisors is an integer number (4005015054).

Almost surely, 2^77505550050 is an apocalyptic number.

77505550050 is an abundant number, since it is smaller than the sum of its proper divisors (114735172542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77505550050 is a wasteful number, since it uses less digits than its factorization.

77505550050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72483 (or 72478 counting only the distinct ones).

The product of its (nonzero) digits is 153125, while the sum is 39.

The spelling of 77505550050 in words is "seventy-seven billion, five hundred five million, five hundred fifty thousand, fifty".