772044134401 has 4 divisors (see below), whose sum is σ = 778876383492. Its totient is φ = 765211885312.

The previous prime is 772044134383. The next prime is 772044134413. The reversal of 772044134401 is 104431440277.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104431440277 = 131 ⋅797186567.

It can be written as a sum of positive squares in 2 ways, for example, as 202298450176 + 569745684225 = 449776^2 + 754815^2 .

It is a cyclic number.

It is not a de Polignac number, because 772044134401 - 2⁷ = 772044134273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (772044134201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3416124376 + ... + 3416124601.

It is an arithmetic number, because the mean of its divisors is an integer number (194719095873).

Almost surely, 2^772044134401 is an apocalyptic number.

It is an amenable number.

772044134401 is a deficient number, since it is larger than the sum of its proper divisors (6832249091).

772044134401 is a wasteful number, since it uses less digits than its factorization.

772044134401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6832249090.

The product of its (nonzero) digits is 75264, while the sum is 37.

Adding to 772044134401 its reverse (104431440277), we get a palindrome (876475574678).

The spelling of 772044134401 in words is "seven hundred seventy-two billion, forty-four million, one hundred thirty-four thousand, four hundred one".