77718053 has 8 divisors (see below), whose sum is σ = 88927872. Its totient is φ = 66535056.

The previous prime is 77718029. The next prime is 77718061. The reversal of 77718053 is 35081777.

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

It is a de Polignac number, because none of the positive numbers 2^k-77718053 is a prime.

It is a super-2 number, since 2×77718053² = 12080191524221618, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77717998 and 77718016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77718013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50 + ... + 12467.

It is an arithmetic number, because the mean of its divisors is an integer number (11115984).

Almost surely, 2^77718053 is an apocalyptic number.

It is an amenable number.

77718053 is a deficient number, since it is larger than the sum of its proper divisors (11209819).

77718053 is a wasteful number, since it uses less digits than its factorization.

77718053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13411.

The product of its (nonzero) digits is 41160, while the sum is 38.

The square root of 77718053 is about 8815.7843099749. The cubic root of 77718053 is about 426.7504332467.

The spelling of 77718053 in words is "seventy-seven million, seven hundred eighteen thousand, fifty-three".