97662776444 has 6 divisors (see below), whose sum is σ = 170909858784. Its totient is φ = 48831388220.

The previous prime is 97662776441. The next prime is 97662776461. The reversal of 97662776444 is 44467726679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97662776441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12207847052 + ... + 12207847059.

It is an arithmetic number, because the mean of its divisors is an integer number (28484976464).

Almost surely, 2^97662776444 is an apocalyptic number.

It is an amenable number.

97662776444 is a deficient number, since it is larger than the sum of its proper divisors (73247082340).

97662776444 is a wasteful number, since it uses less digits than its factorization.

97662776444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24415694115 (or 24415694113 counting only the distinct ones).

The product of its digits is 85349376, while the sum is 62.

The spelling of 97662776444 in words is "ninety-seven billion, six hundred sixty-two million, seven hundred seventy-six thousand, four hundred forty-four".