97404686819 has 4 divisors (see below), whose sum is σ = 106259658360. Its totient is φ = 88549715280.

The previous prime is 97404686791. The next prime is 97404686887. The reversal of 97404686819 is 91868640479.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 97404686819 - 2²⁴ = 97387909603 is a prime.

It is a super-2 number, since 2×97404686819² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97604686819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4427485754 + ... + 4427485775.

It is an arithmetic number, because the mean of its divisors is an integer number (26564914590).

Almost surely, 2^97404686819 is an apocalyptic number.

97404686819 is a deficient number, since it is larger than the sum of its proper divisors (8854971541).

97404686819 is a wasteful number, since it uses less digits than its factorization.

97404686819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8854971540.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 97404686819 in words is "ninety-seven billion, four hundred four million, six hundred eighty-six thousand, eight hundred nineteen".