97644599544679 has 16 divisors (see below), whose sum is σ = 106550607572640. Its totient is φ = 88743464472960.

The previous prime is 97644599544659. The next prime is 97644599544727.

It is a happy number.

97644599544679 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 97644599544679 - 2⁷ = 97644599544551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97644599544679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97644599544659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852495977 + ... + 1852548685.

It is an arithmetic number, because the mean of its divisors is an integer number (6659412973290).

Almost surely, 2^{97644599544679} is an apocalyptic number.

97644599544679 is a deficient number, since it is larger than the sum of its proper divisors (8906008027961).

97644599544679 is a wasteful number, since it uses less digits than its factorization.

97644599544679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95730.

The product of its digits is 74071065600, while the sum is 88.

The spelling of 97644599544679 in words is "ninety-seven trillion, six hundred forty-four billion, five hundred ninety-nine million, five hundred forty-four thousand, six hundred seventy-nine".