14798926981 has 2 divisors, whose sum is σ = 14798926982. Its totient is φ = 14798926980.

The previous prime is 14798926973. The next prime is 14798926991. The reversal of 14798926981 is 18962989741.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12404390625 + 2394536356 = 111375^2 + 48934^2 .

It is an emirp because it is prime and its reverse (18962989741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14798926981 - 2³ = 14798926973 is a prime.

It is a super-2 number, since 2×14798926981² (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 (14798926951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7399463490 + 7399463491.

It is an arithmetic number, because the mean of its divisors is an integer number (7399463491).

Almost surely, 2^14798926981 is an apocalyptic number.

It is an amenable number.

14798926981 is a deficient number, since it is larger than the sum of its proper divisors (1).

14798926981 is an equidigital number, since it uses as much as digits as its factorization.

14798926981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 64.

The spelling of 14798926981 in words is "fourteen billion, seven hundred ninety-eight million, nine hundred twenty-six thousand, nine hundred eighty-one".