1390426554919 has 2 divisors, whose sum is σ = 1390426554920. Its totient is φ = 1390426554918.

The previous prime is 1390426554901. The next prime is 1390426554941. The reversal of 1390426554919 is 9194556240931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1390426554919 - 2¹⁵ = 1390426522151 is a prime.

It is a super-2 number, since 2×1390426554919² (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 (1390426554019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695213277459 + 695213277460.

It is an arithmetic number, because the mean of its divisors is an integer number (695213277460).

Almost surely, 2^{1390426554919} is an apocalyptic number.

1390426554919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390426554919 is an equidigital number, since it uses as much as digits as its factorization.

1390426554919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 1390426554919 in words is "one trillion, three hundred ninety billion, four hundred twenty-six million, five hundred fifty-four thousand, nine hundred nineteen".