14790357781 has 2 divisors, whose sum is σ = 14790357782. Its totient is φ = 14790357780.

The previous prime is 14790357737. The next prime is 14790357797. The reversal of 14790357781 is 18775309741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13918100625 + 872257156 = 117975^2 + 29534^2 .

It is a cyclic number.

It is not a de Polignac number, because 14790357781 - 2¹⁵ = 14790325013 is a prime.

It is a super-2 number, since 2×14790357781² (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 (14790357481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7395178890 + 7395178891.

It is an arithmetic number, because the mean of its divisors is an integer number (7395178891).

Almost surely, 2^14790357781 is an apocalyptic number.

It is an amenable number.

14790357781 is a deficient number, since it is larger than the sum of its proper divisors (1).

14790357781 is an equidigital number, since it uses as much as digits as its factorization.

14790357781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1481760, while the sum is 52.

The spelling of 14790357781 in words is "fourteen billion, seven hundred ninety million, three hundred fifty-seven thousand, seven hundred eighty-one".