149345894879 has 2 divisors, whose sum is σ = 149345894880. Its totient is φ = 149345894878.

The previous prime is 149345894861. The next prime is 149345894881. The reversal of 149345894879 is 978498543941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 149345894879 - 2⁸ = 149345894623 is a prime.

Together with 149345894881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149345894279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74672947439 + 74672947440.

It is an arithmetic number, because the mean of its divisors is an integer number (74672947440).

Almost surely, 2^149345894879 is an apocalyptic number.

149345894879 is a deficient number, since it is larger than the sum of its proper divisors (1).

149345894879 is an equidigital number, since it uses as much as digits as its factorization.

149345894879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313528320, while the sum is 71.

The spelling of 149345894879 in words is "one hundred forty-nine billion, three hundred forty-five million, eight hundred ninety-four thousand, eight hundred seventy-nine".