97944991222436 has 24 divisors (see below), whose sum is σ = 181487046756960. Its totient is φ = 46091572767872.

The previous prime is 97944991222433. The next prime is 97944991222439. The reversal of 97944991222436 is 63422219944979.

It is an interprime number because it is at equal distance from previous prime (97944991222433) and next prime (97944991222439).

It is a self number, because there is not a number n which added to its sum of digits gives 97944991222436.

It is not an unprimeable number, because it can be changed into a prime (97944991222433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14645555 + ... + 20257893.

It is an arithmetic number, because the mean of its divisors is an integer number (7561960281540).

Almost surely, 2^{97944991222436} is an apocalyptic number.

It is an amenable number.

97944991222436 is a deficient number, since it is larger than the sum of its proper divisors (83542055534524).

97944991222436 is a wasteful number, since it uses less digits than its factorization.

97944991222436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5869003 (or 5869001 counting only the distinct ones).

The product of its digits is 423263232, while the sum is 71.

The spelling of 97944991222436 in words is "ninety-seven trillion, nine hundred forty-four billion, nine hundred ninety-one million, two hundred twenty-two thousand, four hundred thirty-six".