1420381897919 has 2 divisors, whose sum is σ = 1420381897920. Its totient is φ = 1420381897918.

The previous prime is 1420381897897. The next prime is 1420381897927. The reversal of 1420381897919 is 9197981830241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1420381897919 - 2¹² = 1420381893823 is a prime.

It is a super-2 number, since 2×1420381897919² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1420381897999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710190948959 + 710190948960.

It is an arithmetic number, because the mean of its divisors is an integer number (710190948960).

Almost surely, 2^{1420381897919} is an apocalyptic number.

1420381897919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420381897919 is an equidigital number, since it uses as much as digits as its factorization.

1420381897919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 62.

The spelling of 1420381897919 in words is "one trillion, four hundred twenty billion, three hundred eighty-one million, eight hundred ninety-seven thousand, nine hundred nineteen".