767442728041 has 4 divisors (see below), whose sum is σ = 837210248784. Its totient is φ = 697675207300.

The previous prime is 767442727957. The next prime is 767442728093. The reversal of 767442728041 is 140827244767.

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 767442728041 - 2¹⁵ = 767442695273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 767442728041.

It is not an unprimeable number, because it can be changed into a prime (767442728341) 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, 34883760355 + ... + 34883760376.

It is an arithmetic number, because the mean of its divisors is an integer number (209302562196).

Almost surely, 2^767442728041 is an apocalyptic number.

It is an amenable number.

767442728041 is a deficient number, since it is larger than the sum of its proper divisors (69767520743).

767442728041 is a wasteful number, since it uses less digits than its factorization.

767442728041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69767520742.

The product of its (nonzero) digits is 4214784, while the sum is 52.

The spelling of 767442728041 in words is "seven hundred sixty-seven billion, four hundred forty-two million, seven hundred twenty-eight thousand, forty-one".