149473941887819 has 2 divisors, whose sum is σ = 149473941887820. Its totient is φ = 149473941887818.

The previous prime is 149473941887729. The next prime is 149473941887849. The reversal of 149473941887819 is 918788149374941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149473941887819 - 2³⁶ = 149405222411083 is a prime.

It is a super-2 number, since 2×149473941887819² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (149473941887849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74736970943909 + 74736970943910.

It is an arithmetic number, because the mean of its divisors is an integer number (74736970943910).

Almost surely, 2^{149473941887819} is an apocalyptic number.

149473941887819 is a deficient number, since it is larger than the sum of its proper divisors (1).

149473941887819 is an equidigital number, since it uses as much as digits as its factorization.

149473941887819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3511517184, while the sum is 83.

The spelling of 149473941887819 in words is "one hundred forty-nine trillion, four hundred seventy-three billion, nine hundred forty-one million, eight hundred eighty-seven thousand, eight hundred nineteen".