97811295382 has 4 divisors (see below), whose sum is σ = 146716943076. Its totient is φ = 48905647690.

The previous prime is 97811295371. The next prime is 97811295383. The reversal of 97811295382 is 28359211879.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97811295383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24452823844 + ... + 24452823847.

It is an arithmetic number, because the mean of its divisors is an integer number (36679235769).

Almost surely, 2^97811295382 is an apocalyptic number.

97811295382 is a deficient number, since it is larger than the sum of its proper divisors (48905647694).

97811295382 is a wasteful number, since it uses less digits than its factorization.

97811295382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48905647693.

The product of its digits is 2177280, while the sum is 55.

The spelling of 97811295382 in words is "ninety-seven billion, eight hundred eleven million, two hundred ninety-five thousand, three hundred eighty-two".