149792749646 has 4 divisors (see below), whose sum is σ = 224689124472. Its totient is φ = 74896374822.

The previous prime is 149792749597. The next prime is 149792749649. The reversal of 149792749646 is 646947297941.

149792749646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646947297941 = 7 ⋅92421042563.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149792749649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37448187410 + ... + 37448187413.

It is an arithmetic number, because the mean of its divisors is an integer number (56172281118).

Almost surely, 2^149792749646 is an apocalyptic number.

149792749646 is a deficient number, since it is larger than the sum of its proper divisors (74896374826).

149792749646 is an equidigital number, since it uses as much as digits as its factorization.

149792749646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74896374825.

The product of its digits is 164602368, while the sum is 68.

The spelling of 149792749646 in words is "one hundred forty-nine billion, seven hundred ninety-two million, seven hundred forty-nine thousand, six hundred forty-six".