77814953885 has 8 divisors (see below), whose sum is σ = 93442844160. Its totient is φ = 62208696784.

The previous prime is 77814953873. The next prime is 77814953911. The reversal of 77814953885 is 58835941877.

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 77814953885 - 2²⁴ = 77798176669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5400377 + ... + 5414766.

It is an arithmetic number, because the mean of its divisors is an integer number (11680355520).

Almost surely, 2^77814953885 is an apocalyptic number.

It is an amenable number.

77814953885 is a deficient number, since it is larger than the sum of its proper divisors (15627890275).

77814953885 is a wasteful number, since it uses less digits than its factorization.

77814953885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10816587.

The product of its digits is 67737600, while the sum is 65.

The spelling of 77814953885 in words is "seventy-seven billion, eight hundred fourteen million, nine hundred fifty-three thousand, eight hundred eighty-five".