97145045762 has 4 divisors (see below), whose sum is σ = 145717568646. Its totient is φ = 48572522880.

The previous prime is 97145045729. The next prime is 97145045797. The reversal of 97145045762 is 26754054179.

It is a happy number.

It is a Cunningham number, because it is equal to 311681²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26754054179 = 137 ⋅195285067.

It can be written as a sum of positive squares in only one way, i.e., 97145045761 + 1 = 311681^2 + 1^2 .

It is a super-2 number, since 2×97145045762² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 97145045762.

It is an unprimeable number.

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, 24286261439 + ... + 24286261442.

Almost surely, 2^97145045762 is an apocalyptic number.

97145045762 is a deficient number, since it is larger than the sum of its proper divisors (48572522884).

97145045762 is a wasteful number, since it uses less digits than its factorization.

97145045762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48572522883.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 97145045762 in words is "ninety-seven billion, one hundred forty-five million, forty-five thousand, seven hundred sixty-two".