77079728114 has 4 divisors (see below), whose sum is σ = 115619592174. Its totient is φ = 38539864056.

The previous prime is 77079728087. The next prime is 77079728149. The reversal of 77079728114 is 41182797077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 55077049225 + 22002678889 = 234685^2 + 148333^2 .

It is a super-2 number, since 2×77079728114² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19269932027 + ... + 19269932030.

Almost surely, 2^77079728114 is an apocalyptic number.

77079728114 is a deficient number, since it is larger than the sum of its proper divisors (38539864060).

77079728114 is a wasteful number, since it uses less digits than its factorization.

77079728114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38539864059.

The product of its (nonzero) digits is 1382976, while the sum is 53.

The spelling of 77079728114 in words is "seventy-seven billion, seventy-nine million, seven hundred twenty-eight thousand, one hundred fourteen".