77274410401 has 4 divisors (see below), whose sum is σ = 81819963972. Its totient is φ = 72728856832.

The previous prime is 77274410399. The next prime is 77274410417. The reversal of 77274410401 is 10401447277.

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

It can be written as a sum of positive squares in 2 ways, for example, as 60638570001 + 16635840400 = 246249^2 + 128980^2 .

It is a cyclic number.

It is not a de Polignac number, because 77274410401 - 2¹ = 77274410399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77274417401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272776760 + ... + 2272776793.

It is an arithmetic number, because the mean of its divisors is an integer number (20454990993).

Almost surely, 2^77274410401 is an apocalyptic number.

It is an amenable number.

77274410401 is a deficient number, since it is larger than the sum of its proper divisors (4545553571).

77274410401 is a wasteful number, since it uses less digits than its factorization.

77274410401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545553570.

The product of its (nonzero) digits is 43904, while the sum is 37.

Adding to 77274410401 its reverse (10401447277), we get a palindrome (87675857678).

The spelling of 77274410401 in words is "seventy-seven billion, two hundred seventy-four million, four hundred ten thousand, four hundred one".