77423356061 has 8 divisors (see below), whose sum is σ = 78301468800. Its totient is φ = 76545425440.

The previous prime is 77423356051. The next prime is 77423356081. The reversal of 77423356061 is 16065332477.

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

It is a de Polignac number, because none of the positive numbers 2^k-77423356061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77423356001) 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, 926396 + ... + 1006506.

It is an arithmetic number, because the mean of its divisors is an integer number (9787683600).

Almost surely, 2^77423356061 is an apocalyptic number.

It is an amenable number.

77423356061 is a deficient number, since it is larger than the sum of its proper divisors (878112739).

77423356061 is a wasteful number, since it uses less digits than its factorization.

77423356061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91059.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 77423356061 in words is "seventy-seven billion, four hundred twenty-three million, three hundred fifty-six thousand, sixty-one".