154961840959 has 2 divisors, whose sum is σ = 154961840960. Its totient is φ = 154961840958.

The previous prime is 154961840951. The next prime is 154961840993. The reversal of 154961840959 is 959048169451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154961840959 - 2³ = 154961840951 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154961840897 and 154961840906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (154961840951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77480920479 + 77480920480.

It is an arithmetic number, because the mean of its divisors is an integer number (77480920480).

Almost surely, 2^154961840959 is an apocalyptic number.

154961840959 is a deficient number, since it is larger than the sum of its proper divisors (1).

154961840959 is an equidigital number, since it uses as much as digits as its factorization.

154961840959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13996800, while the sum is 61.

The spelling of 154961840959 in words is "one hundred fifty-four billion, nine hundred sixty-one million, eight hundred forty thousand, nine hundred fifty-nine".