1553030438819 has 2 divisors, whose sum is σ = 1553030438820. Its totient is φ = 1553030438818.

The previous prime is 1553030438803. The next prime is 1553030438833. The reversal of 1553030438819 is 9188340303551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1553030438819 - 2⁴ = 1553030438803 is a prime.

It is a super-2 number, since 2×1553030438819² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1553030438879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776515219409 + 776515219410.

It is an arithmetic number, because the mean of its divisors is an integer number (776515219410).

Almost surely, 2^{1553030438819} is an apocalyptic number.

1553030438819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1553030438819 is an equidigital number, since it uses as much as digits as its factorization.

1553030438819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 1553030438819 in words is "one trillion, five hundred fifty-three billion, thirty million, four hundred thirty-eight thousand, eight hundred nineteen".