16903404797 has 2 divisors, whose sum is σ = 16903404798. Its totient is φ = 16903404796.

The previous prime is 16903404781. The next prime is 16903404811. The reversal of 16903404797 is 79740430961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16819755481 + 83649316 = 129691^2 + 9146^2 .

It is a cyclic number.

It is not a de Polignac number, because 16903404797 - 2⁴ = 16903404781 is a prime.

It is a super-2 number, since 2×16903404797² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16903404767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8451702398 + 8451702399.

It is an arithmetic number, because the mean of its divisors is an integer number (8451702399).

Almost surely, 2^16903404797 is an apocalyptic number.

It is an amenable number.

16903404797 is a deficient number, since it is larger than the sum of its proper divisors (1).

16903404797 is an equidigital number, since it uses as much as digits as its factorization.

16903404797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 16903404797 in words is "sixteen billion, nine hundred three million, four hundred four thousand, seven hundred ninety-seven".