387619397149 has 2 divisors, whose sum is σ = 387619397150. Its totient is φ = 387619397148.

The previous prime is 387619397107. The next prime is 387619397183. The reversal of 387619397149 is 941793916783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233607888900 + 154011508249 = 483330^2 + 392443^2 .

It is a cyclic number.

It is not a de Polignac number, because 387619397149 - 2¹⁷ = 387619266077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387619397549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193809698574 + 193809698575.

It is an arithmetic number, because the mean of its divisors is an integer number (193809698575).

Almost surely, 2^387619397149 is an apocalyptic number.

It is an amenable number.

387619397149 is a deficient number, since it is larger than the sum of its proper divisors (1).

387619397149 is an equidigital number, since it uses as much as digits as its factorization.

387619397149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61725888, while the sum is 67.

The spelling of 387619397149 in words is "three hundred eighty-seven billion, six hundred nineteen million, three hundred ninety-seven thousand, one hundred forty-nine".