77761172714086 has 4 divisors (see below), whose sum is σ = 116641759071132. Its totient is φ = 38880586357042.

The previous prime is 77761172714081. The next prime is 77761172714149. The reversal of 77761172714086 is 68041727116777.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77761172714081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19440293178520 + ... + 19440293178523.

It is an arithmetic number, because the mean of its divisors is an integer number (29160439767783).

Almost surely, 2^{77761172714086} is an apocalyptic number.

77761172714086 is a deficient number, since it is larger than the sum of its proper divisors (38880586357046).

77761172714086 is a wasteful number, since it uses less digits than its factorization.

77761172714086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38880586357045.

The product of its (nonzero) digits is 38723328, while the sum is 64.

The spelling of 77761172714086 in words is "seventy-seven trillion, seven hundred sixty-one billion, one hundred seventy-two million, seven hundred fourteen thousand, eighty-six".