77333880261 has 8 divisors (see below), whose sum is σ = 112485644064. Its totient is φ = 46869018320.

The previous prime is 77333880259. The next prime is 77333880263. The reversal of 77333880261 is 16208833377.

It is an interprime number because it is at equal distance from previous prime (77333880259) and next prime (77333880263).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 77333880261 - 2¹ = 77333880259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77333880261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77333880263) 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 7 ways as a sum of consecutive naturals, for example, 1171725426 + ... + 1171725491.

It is an arithmetic number, because the mean of its divisors is an integer number (14060705508).

Almost surely, 2^77333880261 is an apocalyptic number.

It is an amenable number.

77333880261 is a deficient number, since it is larger than the sum of its proper divisors (35151763803).

77333880261 is a wasteful number, since it uses less digits than its factorization.

77333880261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343450931.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 77333880261 in words is "seventy-seven billion, three hundred thirty-three million, eight hundred eighty thousand, two hundred sixty-one".