981153700819 has 2 divisors, whose sum is σ = 981153700820. Its totient is φ = 981153700818.

The previous prime is 981153700771. The next prime is 981153700859. The reversal of 981153700819 is 918007351189.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-981153700819 is a prime.

It is a super-2 number, since 2×981153700819² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (981153700859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490576850409 + 490576850410.

It is an arithmetic number, because the mean of its divisors is an integer number (490576850410).

Almost surely, 2^981153700819 is an apocalyptic number.

981153700819 is a deficient number, since it is larger than the sum of its proper divisors (1).

981153700819 is an equidigital number, since it uses as much as digits as its factorization.

981153700819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 52.

The spelling of 981153700819 in words is "nine hundred eighty-one billion, one hundred fifty-three million, seven hundred thousand, eight hundred nineteen".