149510385789 has 4 divisors (see below), whose sum is σ = 199347181056. Its totient is φ = 99673590524.

The previous prime is 149510385779. The next prime is 149510385793. The reversal of 149510385789 is 987583015941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 149510385789 - 2¹² = 149510381693 is a prime.

It is a super-2 number, since 2×149510385789² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149510385709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24918397629 + ... + 24918397634.

It is an arithmetic number, because the mean of its divisors is an integer number (49836795264).

Almost surely, 2^149510385789 is an apocalyptic number.

It is an amenable number.

149510385789 is a deficient number, since it is larger than the sum of its proper divisors (49836795267).

149510385789 is an equidigital number, since it uses as much as digits as its factorization.

149510385789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49836795266.

The product of its (nonzero) digits is 10886400, while the sum is 60.

The spelling of 149510385789 in words is "one hundred forty-nine billion, five hundred ten million, three hundred eighty-five thousand, seven hundred eighty-nine".