697549487941 has 4 divisors (see below), whose sum is σ = 699005750400. Its totient is φ = 696093225484.

The previous prime is 697549487911. The next prime is 697549487963. The reversal of 697549487941 is 149784945796.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 697549487941 - 2¹⁵ = 697549455173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697549487911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728130511 + ... + 728131468.

It is an arithmetic number, because the mean of its divisors is an integer number (174751437600).

Almost surely, 2^697549487941 is an apocalyptic number.

It is an amenable number.

697549487941 is a deficient number, since it is larger than the sum of its proper divisors (1456262459).

697549487941 is a wasteful number, since it uses less digits than its factorization.

697549487941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456262458.

The product of its digits is 548674560, while the sum is 73.

The spelling of 697549487941 in words is "six hundred ninety-seven billion, five hundred forty-nine million, four hundred eighty-seven thousand, nine hundred forty-one".