77798385701 has 8 divisors (see below), whose sum is σ = 84106363680. Its totient is φ = 71711740368.

The previous prime is 77798385689. The next prime is 77798385751. The reversal of 77798385701 is 10758389777.

It is a happy number.

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 77798385701 - 2¹⁴ = 77798369317 is a prime.

It is a super-2 number, since 2×77798385701² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77798385751) 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, 55332431 + ... + 55333836.

It is an arithmetic number, because the mean of its divisors is an integer number (10513295460).

Almost surely, 2^77798385701 is an apocalyptic number.

It is an amenable number.

77798385701 is a deficient number, since it is larger than the sum of its proper divisors (6307977979).

77798385701 is a wasteful number, since it uses less digits than its factorization.

77798385701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110666323.

The product of its (nonzero) digits is 20744640, while the sum is 62.

The spelling of 77798385701 in words is "seventy-seven billion, seven hundred ninety-eight million, three hundred eighty-five thousand, seven hundred one".