149677426399 has 2 divisors, whose sum is σ = 149677426400. Its totient is φ = 149677426398.

The previous prime is 149677426397. The next prime is 149677426403. The reversal of 149677426399 is 993624776941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149677426399 - 2¹ = 149677426397 is a prime.

Together with 149677426397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149677426397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74838713199 + 74838713200.

It is an arithmetic number, because the mean of its divisors is an integer number (74838713200).

Almost surely, 2^149677426399 is an apocalyptic number.

149677426399 is a deficient number, since it is larger than the sum of its proper divisors (1).

149677426399 is an equidigital number, since it uses as much as digits as its factorization.

149677426399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 123451776, while the sum is 67.

The spelling of 149677426399 in words is "one hundred forty-nine billion, six hundred seventy-seven million, four hundred twenty-six thousand, three hundred ninety-nine".