77387677678377 has 24 divisors (see below), whose sum is σ = 128362336184160. Its totient is φ = 44433116369280.

The previous prime is 77387677678343. The next prime is 77387677678411.

77387677678377 is a `hidden beast` number, since 7 + 7 + 38 + 76 + 7 + 76 + 78 + 377 = 666.

77387677678377 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (77387677678343) and next prime (77387677678411).

It is not a de Polignac number, because 77387677678377 - 2¹⁰ = 77387677677353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77387677678477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20570885328 + ... + 20570889089.

It is an arithmetic number, because the mean of its divisors is an integer number (5348430674340).

Almost surely, 2^{77387677678377} is an apocalyptic number.

It is an amenable number.

77387677678377 is a deficient number, since it is larger than the sum of its proper divisors (50974658505783).

77387677678377 is a wasteful number, since it uses less digits than its factorization.

77387677678377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41141774453 (or 41141774450 counting only the distinct ones).

The product of its digits is 119538913536, while the sum is 90.

The spelling of 77387677678377 in words is "seventy-seven trillion, three hundred eighty-seven billion, six hundred seventy-seven million, six hundred seventy-eight thousand, three hundred seventy-seven".