1542631179811 has 2 divisors, whose sum is σ = 1542631179812. Its totient is φ = 1542631179810.

The previous prime is 1542631179773. The next prime is 1542631179829. The reversal of 1542631179811 is 1189711362451.

It is a strong prime.

It is an emirp because it is prime and its reverse (1189711362451) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1542631179811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1542631179511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771315589905 + 771315589906.

It is an arithmetic number, because the mean of its divisors is an integer number (771315589906).

Almost surely, 2^{1542631179811} is an apocalyptic number.

1542631179811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542631179811 is an equidigital number, since it uses as much as digits as its factorization.

1542631179811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 49.

The spelling of 1542631179811 in words is "one trillion, five hundred forty-two billion, six hundred thirty-one million, one hundred seventy-nine thousand, eight hundred eleven".