97345686639 has 16 divisors (see below), whose sum is σ = 131639904000. Its totient is φ = 63974541120.

The previous prime is 97345686631. The next prime is 97345686649. The reversal of 97345686639 is 93668654379.

It is not a de Polignac number, because 97345686639 - 2³ = 97345686631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97345686639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97345686631) 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, 1836987 + ... + 1889235.

It is an arithmetic number, because the mean of its divisors is an integer number (8227494000).

Almost surely, 2^97345686639 is an apocalyptic number.

97345686639 is a deficient number, since it is larger than the sum of its proper divisors (34294217361).

97345686639 is a wasteful number, since it uses less digits than its factorization.

97345686639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61070.

The product of its digits is 176359680, while the sum is 66.

The spelling of 97345686639 in words is "ninety-seven billion, three hundred forty-five million, six hundred eighty-six thousand, six hundred thirty-nine".