97474447479 has 16 divisors (see below), whose sum is σ = 132152398560. Its totient is φ = 63897799680.

The previous prime is 97474447457. The next prime is 97474447519.

97474447479 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 97474447479 - 2¹² = 97474443383 is a prime.

It is a super-2 number, since 2×97474447479² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97474447409) 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, 960162 + ... + 1056815.

It is an arithmetic number, because the mean of its divisors is an integer number (8259524910).

Almost surely, 2^97474447479 is an apocalyptic number.

97474447479 is a deficient number, since it is larger than the sum of its proper divisors (34677951081).

97474447479 is a wasteful number, since it uses less digits than its factorization.

97474447479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017250.

The product of its digits is 199148544, while the sum is 66.

The spelling of 97474447479 in words is "ninety-seven billion, four hundred seventy-four million, four hundred forty-seven thousand, four hundred seventy-nine".