697645299613 has 16 divisors (see below), whose sum is σ = 729121893120. Its totient is φ = 666264905856.

The previous prime is 697645299607. The next prime is 697645299647. The reversal of 697645299613 is 316992546796.

It is a cyclic number.

It is not a de Polignac number, because 697645299613 - 2⁹ = 697645299101 is a prime.

It is a super-2 number, since 2×697645299613² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697645296613) 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, 42102256 + ... + 42118822.

It is an arithmetic number, because the mean of its divisors is an integer number (45570118320).

Almost surely, 2^697645299613 is an apocalyptic number.

It is an amenable number.

697645299613 is a deficient number, since it is larger than the sum of its proper divisors (31476593507).

697645299613 is a wasteful number, since it uses less digits than its factorization.

697645299613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19356.

The product of its digits is 132269760, while the sum is 67.

The spelling of 697645299613 in words is "six hundred ninety-seven billion, six hundred forty-five million, two hundred ninety-nine thousand, six hundred thirteen".