1542107619919 has 2 divisors, whose sum is σ = 1542107619920. Its totient is φ = 1542107619918.

The previous prime is 1542107619889. The next prime is 1542107619953. The reversal of 1542107619919 is 9199167012451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1542107619919 - 2⁹ = 1542107619407 is a prime.

It is a super-2 number, since 2×1542107619919² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1542107619919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542107629919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771053809959 + 771053809960.

It is an arithmetic number, because the mean of its divisors is an integer number (771053809960).

Almost surely, 2^{1542107619919} is an apocalyptic number.

1542107619919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542107619919 is an equidigital number, since it uses as much as digits as its factorization.

1542107619919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 55.

The spelling of 1542107619919 in words is "one trillion, five hundred forty-two billion, one hundred seven million, six hundred nineteen thousand, nine hundred nineteen".