77761153617423 has 8 divisors (see below), whose sum is σ = 104012789078448. Its totient is φ = 51675143617344.

The previous prime is 77761153617401. The next prime is 77761153617437. The reversal of 77761153617423 is 32471635116777.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77761153617423 - 2¹² = 77761153613327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77761153617923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41406364140 + ... + 41406366017.

It is an arithmetic number, because the mean of its divisors is an integer number (13001598634806).

Almost surely, 2^{77761153617423} is an apocalyptic number.

77761153617423 is a deficient number, since it is larger than the sum of its proper divisors (26251635461025).

77761153617423 is a wasteful number, since it uses less digits than its factorization.

77761153617423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82812730473.

The product of its digits is 31116960, while the sum is 60.

The spelling of 77761153617423 in words is "seventy-seven trillion, seven hundred sixty-one billion, one hundred fifty-three million, six hundred seventeen thousand, four hundred twenty-three".