149637842377 has 2 divisors, whose sum is σ = 149637842378. Its totient is φ = 149637842376.

The previous prime is 149637842353. The next prime is 149637842483. The reversal of 149637842377 is 773248736941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108098918656 + 41538923721 = 328784^2 + 203811^2 .

It is an emirp because it is prime and its reverse (773248736941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149637842377 - 2¹¹ = 149637840329 is a prime.

It is not a weakly prime, because it can be changed into another prime (149637842317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74818921188 + 74818921189.

It is an arithmetic number, because the mean of its divisors is an integer number (74818921189).

Almost surely, 2^149637842377 is an apocalyptic number.

It is an amenable number.

149637842377 is a deficient number, since it is larger than the sum of its proper divisors (1).

149637842377 is an equidigital number, since it uses as much as digits as its factorization.

149637842377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 61.

The spelling of 149637842377 in words is "one hundred forty-nine billion, six hundred thirty-seven million, eight hundred forty-two thousand, three hundred seventy-seven".