783980920907 has 2 divisors, whose sum is σ = 783980920908. Its totient is φ = 783980920906.

The previous prime is 783980920901. The next prime is 783980920909. The reversal of 783980920907 is 709029089387.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 783980920907 - 2¹⁴ = 783980904523 is a prime.

It is a super-2 number, since 2×783980920907² (a number of 25 digits) contains 22 as substring.

Together with 783980920909, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 783980920907.

It is not a weakly prime, because it can be changed into another prime (783980920901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391990460453 + 391990460454.

It is an arithmetic number, because the mean of its divisors is an integer number (391990460454).

Almost surely, 2^783980920907 is an apocalyptic number.

783980920907 is a deficient number, since it is larger than the sum of its proper divisors (1).

783980920907 is an equidigital number, since it uses as much as digits as its factorization.

783980920907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13716864, while the sum is 62.

The spelling of 783980920907 in words is "seven hundred eighty-three billion, nine hundred eighty million, nine hundred twenty thousand, nine hundred seven".