16747795397 has 4 divisors (see below), whose sum is σ = 16761558156. Its totient is φ = 16734032640.

The previous prime is 16747795369. The next prime is 16747795411. The reversal of 16747795397 is 79359774761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6180160996 + 10567634401 = 78614^2 + 102799^2 .

It is a cyclic number.

It is not a de Polignac number, because 16747795397 - 2¹² = 16747791301 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 (16747735397) 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, 6879554 + ... + 6881987.

It is an arithmetic number, because the mean of its divisors is an integer number (4190389539).

Almost surely, 2^16747795397 is an apocalyptic number.

It is an amenable number.

16747795397 is a deficient number, since it is larger than the sum of its proper divisors (13762759).

16747795397 is a wasteful number, since it uses less digits than its factorization.

16747795397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13762758.

The product of its digits is 70013160, while the sum is 65.

The spelling of 16747795397 in words is "sixteen billion, seven hundred forty-seven million, seven hundred ninety-five thousand, three hundred ninety-seven".