1908981853151 has 2 divisors, whose sum is σ = 1908981853152. Its totient is φ = 1908981853150.

The previous prime is 1908981853117. The next prime is 1908981853157. The reversal of 1908981853151 is 1513581898091.

It is a strong prime.

It is an emirp because it is prime and its reverse (1513581898091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1908981853151 is a prime.

It is a super-2 number, since 2×1908981853151² (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 (1908981853157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 954490926575 + 954490926576.

It is an arithmetic number, because the mean of its divisors is an integer number (954490926576).

Almost surely, 2^{1908981853151} is an apocalyptic number.

1908981853151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1908981853151 is an equidigital number, since it uses as much as digits as its factorization.

1908981853151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 59.

The spelling of 1908981853151 in words is "one trillion, nine hundred eight billion, nine hundred eighty-one million, eight hundred fifty-three thousand, one hundred fifty-one".