772143566089 has 45 divisors (see below), whose sum is σ = 916363947597. Its totient is φ = 650580977592.

The previous prime is 772143566059. The next prime is 772143566113. The reversal of 772143566089 is 980665341277.

The square root of 772143566089 is 878717.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 772143566089 - 2⁵ = 772143566057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (772143566059) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3401513394 + ... + 3401513620.

It is a 1-persistent number, because it is pandigital, but 2⋅772143566089 = 1544287132178 is not.

Almost surely, 2^772143566089 is an apocalyptic number.

772143566089 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

772143566089 is the 878717-th square number.

772143566089 is the 439359-th centered octagonal number.

It is an amenable number.

772143566089 is a deficient number, since it is larger than the sum of its proper divisors (144220381508).

772143566089 is an frugal number, since it uses more digits than its factorization.

772143566089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 772143566089 in words is "seven hundred seventy-two billion, one hundred forty-three million, five hundred sixty-six thousand, eighty-nine".