77404225241044 has 24 divisors (see below), whose sum is σ = 146115166367240. Its totient is φ = 35666748019584.

The previous prime is 77404225241009. The next prime is 77404225241059. The reversal of 77404225241044 is 44014252240477.

It can be written as a sum of positive squares in 4 ways, for example, as 4372331184144 + 73031894056900 = 2091012^2 + 8545870^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77404225240985 and 77404225241003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214113959 + ... + 1214177710.

Almost surely, 2^{77404225241044} is an apocalyptic number.

It is an amenable number.

77404225241044 is a deficient number, since it is larger than the sum of its proper divisors (68710941126196).

77404225241044 is a wasteful number, since it uses less digits than its factorization.

77404225241044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428292299 (or 2428292297 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 46.

The spelling of 77404225241044 in words is "seventy-seven trillion, four hundred four billion, two hundred twenty-five million, two hundred forty-one thousand, forty-four".