150051991949 has 4 divisors (see below), whose sum is σ = 150481940700. Its totient is φ = 149622043200.

The previous prime is 150051991913. The next prime is 150051991963. The reversal of 150051991949 is 949199150051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 949199150051 = 31 ⋅30619327421.

It can be written as a sum of positive squares in 2 ways, for example, as 106582660900 + 43469331049 = 326470^2 + 208493^2 .

It is a cyclic number.

It is not a de Polignac number, because 150051991949 - 2³² = 145757024653 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150051991949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150051991909) 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, 214973852 + ... + 214974549.

It is an arithmetic number, because the mean of its divisors is an integer number (37620485175).

Almost surely, 2^150051991949 is an apocalyptic number.

It is an amenable number.

150051991949 is a deficient number, since it is larger than the sum of its proper divisors (429948751).

150051991949 is an equidigital number, since it uses as much as digits as its factorization.

150051991949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429948750.

The product of its (nonzero) digits is 656100, while the sum is 53.

The spelling of 150051991949 in words is "one hundred fifty billion, fifty-one million, nine hundred ninety-one thousand, nine hundred forty-nine".