77523546460 has 24 divisors (see below), whose sum is σ = 168413222880. Its totient is φ = 29940128064.

The previous prime is 77523546427. The next prime is 77523546461. The reversal of 77523546460 is 6464532577.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77523546461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66830064 + ... + 66831223.

It is an arithmetic number, because the mean of its divisors is an integer number (7017217620).

Almost surely, 2^77523546460 is an apocalyptic number.

It is an amenable number.

77523546460 is an abundant number, since it is smaller than the sum of its proper divisors (90889676420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77523546460 is a wasteful number, since it uses less digits than its factorization.

77523546460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133661325 (or 133661323 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 77523546460 in words is "seventy-seven billion, five hundred twenty-three million, five hundred forty-six thousand, four hundred sixty".