97676654321 has 4 divisors (see below), whose sum is σ = 97677922212. Its totient is φ = 97675386432.

The previous prime is 97676654293. The next prime is 97676654329. The reversal of 97676654321 is 12345667679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12345667679 = 1997 ⋅6182107.

It can be written as a sum of positive squares in 2 ways, for example, as 45984084721 + 51692569600 = 214439^2 + 227360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97676654321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97676654329) 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, 510356 + ... + 675141.

It is an arithmetic number, because the mean of its divisors is an integer number (24419480553).

Almost surely, 2^97676654321 is an apocalyptic number.

It is an amenable number.

97676654321 is a deficient number, since it is larger than the sum of its proper divisors (1267891).

97676654321 is a wasteful number, since it uses less digits than its factorization.

97676654321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267890.

The product of its digits is 11430720, while the sum is 56.

The spelling of 97676654321 in words is "ninety-seven billion, six hundred seventy-six million, six hundred fifty-four thousand, three hundred twenty-one".