77609919743 has 8 divisors (see below), whose sum is σ = 78241606320. Its totient is φ = 76979972160.

The previous prime is 77609919727. The next prime is 77609919773. The reversal of 77609919743 is 34791990677.

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

It is a cyclic number.

It is not a de Polignac number, because 77609919743 - 2⁴ = 77609919727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77609919703) 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, 345053 + ... + 523718.

It is an arithmetic number, because the mean of its divisors is an integer number (9780200790).

Almost surely, 2^77609919743 is an apocalyptic number.

77609919743 is a deficient number, since it is larger than the sum of its proper divisors (631686577).

77609919743 is a wasteful number, since it uses less digits than its factorization.

77609919743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869497.

The product of its (nonzero) digits is 18003384, while the sum is 62.

The spelling of 77609919743 in words is "seventy-seven billion, six hundred nine million, nine hundred nineteen thousand, seven hundred forty-three".