773138543627 has 4 divisors (see below), whose sum is σ = 773258064480. Its totient is φ = 773019022776.

The previous prime is 773138543621. The next prime is 773138543641. The reversal of 773138543627 is 726345831377.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 726345831377 = 131 ⋅5544624667.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-773138543627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773138543621) 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, 59750723 + ... + 59763660.

It is an arithmetic number, because the mean of its divisors is an integer number (193314516120).

Almost surely, 2^773138543627 is an apocalyptic number.

773138543627 is a deficient number, since it is larger than the sum of its proper divisors (119520853).

773138543627 is a wasteful number, since it uses less digits than its factorization.

773138543627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119520852.

The product of its digits is 17781120, while the sum is 56.

The spelling of 773138543627 in words is "seven hundred seventy-three billion, one hundred thirty-eight million, five hundred forty-three thousand, six hundred twenty-seven".