19483730614421 has 2 divisors, whose sum is σ = 19483730614422. Its totient is φ = 19483730614420.

The previous prime is 19483730614357. The next prime is 19483730614489. The reversal of 19483730614421 is 12441603738491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11330050248196 + 8153680366225 = 3366014^2 + 2855465^2 .

It is a cyclic number.

It is not a de Polignac number, because 19483730614421 - 2⁶ = 19483730614357 is a prime.

It is a super-2 number, since 2×19483730614421² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19483730611421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9741865307210 + 9741865307211.

It is an arithmetic number, because the mean of its divisors is an integer number (9741865307211).

Almost surely, 2^{19483730614421} is an apocalyptic number.

It is an amenable number.

19483730614421 is a deficient number, since it is larger than the sum of its proper divisors (1).

19483730614421 is an equidigital number, since it uses as much as digits as its factorization.

19483730614421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 53.

The spelling of 19483730614421 in words is "nineteen trillion, four hundred eighty-three billion, seven hundred thirty million, six hundred fourteen thousand, four hundred twenty-one".