77267908461 has 8 divisors (see below), whose sum is σ = 103235427904. Its totient is φ = 51406164000.

The previous prime is 77267908441. The next prime is 77267908469. The reversal of 77267908461 is 16480976277.

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

It is not a de Polignac number, because 77267908461 - 2¹⁴ = 77267892077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77267908469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26442040 + ... + 26444961.

It is an arithmetic number, because the mean of its divisors is an integer number (12904428488).

Almost surely, 2^77267908461 is an apocalyptic number.

It is an amenable number.

77267908461 is a deficient number, since it is larger than the sum of its proper divisors (25967519443).

77267908461 is a wasteful number, since it uses less digits than its factorization.

77267908461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52887491.

The product of its (nonzero) digits is 7112448, while the sum is 57.

The spelling of 77267908461 in words is "seventy-seven billion, two hundred sixty-seven million, nine hundred eight thousand, four hundred sixty-one".