77440400740441 has 4 divisors (see below), whose sum is σ = 78596227617232. Its totient is φ = 76284573863652.

The previous prime is 77440400740427. The next prime is 77440400740463. The reversal of 77440400740441 is 14404700404477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77440400740441 - 2³⁷ = 77302961786969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77440400740391 and 77440400740400.

It is not an unprimeable number, because it can be changed into a prime (77440400740481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577913438295 + ... + 577913438428.

It is an arithmetic number, because the mean of its divisors is an integer number (19649056904308).

Almost surely, 2^{77440400740441} is an apocalyptic number.

It is an amenable number.

77440400740441 is a deficient number, since it is larger than the sum of its proper divisors (1155826876791).

77440400740441 is a wasteful number, since it uses less digits than its factorization.

77440400740441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155826876790.

The product of its (nonzero) digits is 1404928, while the sum is 46.

The spelling of 77440400740441 in words is "seventy-seven trillion, four hundred forty billion, four hundred million, seven hundred forty thousand, four hundred forty-one".