97749526413 has 32 divisors (see below), whose sum is σ = 162509137920. Its totient is φ = 50773844160.

The previous prime is 97749526339. The next prime is 97749526439. The reversal of 97749526413 is 31462594779.

It is a happy number.

It is not a de Polignac number, because 97749526413 - 2¹⁰ = 97749525389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97749526463) 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 31 ways as a sum of consecutive naturals, for example, 3580531 + ... + 3607727.

It is an arithmetic number, because the mean of its divisors is an integer number (5078410560).

Almost surely, 2^97749526413 is an apocalyptic number.

It is an amenable number.

97749526413 is a deficient number, since it is larger than the sum of its proper divisors (64759611507).

97749526413 is a wasteful number, since it uses less digits than its factorization.

97749526413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42777.

The product of its digits is 11430720, while the sum is 57.

The spelling of 97749526413 in words is "ninety-seven billion, seven hundred forty-nine million, five hundred twenty-six thousand, four hundred thirteen".