14880501781 has 2 divisors, whose sum is σ = 14880501782. Its totient is φ = 14880501780.

The previous prime is 14880501763. The next prime is 14880501791. The reversal of 14880501781 is 18710508841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7524695025 + 7355806756 = 86745^2 + 85766^2 .

It is an emirp because it is prime and its reverse (18710508841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14880501781 - 2⁵ = 14880501749 is a prime.

It is a super-2 number, since 2×14880501781² (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 (14880501791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7440250890 + 7440250891.

It is an arithmetic number, because the mean of its divisors is an integer number (7440250891).

Almost surely, 2^14880501781 is an apocalyptic number.

It is an amenable number.

14880501781 is a deficient number, since it is larger than the sum of its proper divisors (1).

14880501781 is an equidigital number, since it uses as much as digits as its factorization.

14880501781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71680, while the sum is 43.

The spelling of 14880501781 in words is "fourteen billion, eight hundred eighty million, five hundred one thousand, seven hundred eighty-one".