97706219819 has 8 divisors (see below), whose sum is σ = 105461774880. Its totient is φ = 89984906496.

The previous prime is 97706219813. The next prime is 97706219839. The reversal of 97706219819 is 91891260779.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97706219819 - 2⁴ = 97706219803 is a prime.

It is a super-2 number, since 2×97706219819² (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 (97706219813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8554502 + ... + 8565915.

It is an arithmetic number, because the mean of its divisors is an integer number (13182721860).

Almost surely, 2^97706219819 is an apocalyptic number.

97706219819 is a deficient number, since it is larger than the sum of its proper divisors (7755555061).

97706219819 is a wasteful number, since it uses less digits than its factorization.

97706219819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17120869.

The product of its (nonzero) digits is 3429216, while the sum is 59.

The spelling of 97706219819 in words is "ninety-seven billion, seven hundred six million, two hundred nineteen thousand, eight hundred nineteen".