97145357444 has 24 divisors (see below), whose sum is σ = 171487505280. Its totient is φ = 48150461664.

The previous prime is 97145357443. The next prime is 97145357471. The reversal of 97145357444 is 44475354179.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (97145357443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62117 + ... + 445139.

It is an arithmetic number, because the mean of its divisors is an integer number (7145312720).

Almost surely, 2^97145357444 is an apocalyptic number.

It is an amenable number.

97145357444 is a deficient number, since it is larger than the sum of its proper divisors (74342147836).

97145357444 is a wasteful number, since it uses less digits than its factorization.

97145357444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383579 (or 383577 counting only the distinct ones).

The product of its digits is 8467200, while the sum is 53.

The spelling of 97145357444 in words is "ninety-seven billion, one hundred forty-five million, three hundred fifty-seven thousand, four hundred forty-four".