97765723750 has 20 divisors (see below), whose sum is σ = 183252074940. Its totient is φ = 39106289000.

The previous prime is 97765723721. The next prime is 97765723787. The reversal of 97765723750 is 5732756779.

It is a happy number.

It is a super-2 number, since 2×97765723750² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39105040 + ... + 39107539.

It is an arithmetic number, because the mean of its divisors is an integer number (9162603747).

Almost surely, 2^97765723750 is an apocalyptic number.

97765723750 is a deficient number, since it is larger than the sum of its proper divisors (85486351190).

97765723750 is an equidigital number, since it uses as much as digits as its factorization.

97765723750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78212601 (or 78212586 counting only the distinct ones).

The product of its (nonzero) digits is 19448100, while the sum is 58.

The spelling of 97765723750 in words is "ninety-seven billion, seven hundred sixty-five million, seven hundred twenty-three thousand, seven hundred fifty".