149784628269 has 4 divisors (see below), whose sum is σ = 199712837696. Its totient is φ = 99856418844.

The previous prime is 149784628207. The next prime is 149784628277. The reversal of 149784628269 is 962826487941.

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 not a de Polignac number, because 149784628269 - 2¹² = 149784624173 is a prime.

It is a super-2 number, since 2×149784628269² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149784628369) 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, 24964104709 + ... + 24964104714.

It is an arithmetic number, because the mean of its divisors is an integer number (49928209424).

Almost surely, 2^149784628269 is an apocalyptic number.

It is an amenable number.

149784628269 is a deficient number, since it is larger than the sum of its proper divisors (49928209427).

149784628269 is an equidigital number, since it uses as much as digits as its factorization.

149784628269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49928209426.

The product of its digits is 83607552, while the sum is 66.

The spelling of 149784628269 in words is "one hundred forty-nine billion, seven hundred eighty-four million, six hundred twenty-eight thousand, two hundred sixty-nine".