77740662027 has 72 divisors (see below), whose sum is σ = 123496035840. Its totient is φ = 43366246560.

The previous prime is 77740662017. The next prime is 77740662031. The reversal of 77740662027 is 72026604777.

It is not a de Polignac number, because 77740662027 - 2⁴ = 77740662011 is a prime.

It is a super-2 number, since 2×77740662027² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (77740662017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 123202002 + ... + 123202632.

It is an arithmetic number, because the mean of its divisors is an integer number (1715222720).

Almost surely, 2^77740662027 is an apocalyptic number.

77740662027 is a deficient number, since it is larger than the sum of its proper divisors (45755373813).

77740662027 is a wasteful number, since it uses less digits than its factorization.

77740662027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 48.

The spelling of 77740662027 in words is "seventy-seven billion, seven hundred forty million, six hundred sixty-two thousand, twenty-seven".