147961769026 has 4 divisors (see below), whose sum is σ = 221942653542. Its totient is φ = 73980884512.

The previous prime is 147961769017. The next prime is 147961769027. The reversal of 147961769026 is 620967169741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 620967169741 = 17 ⋅36527480573.

It can be written as a sum of positive squares in only one way, i.e., 137084322001 + 10877447025 = 370249^2 + 104295^2 .

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (147961769027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36990442255 + ... + 36990442258.

Almost surely, 2^147961769026 is an apocalyptic number.

147961769026 is a deficient number, since it is larger than the sum of its proper divisors (73980884516).

147961769026 is an equidigital number, since it uses as much as digits as its factorization.

147961769026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73980884515.

The product of its (nonzero) digits is 6858432, while the sum is 58.

The spelling of 147961769026 in words is "one hundred forty-seven billion, nine hundred sixty-one million, seven hundred sixty-nine thousand, twenty-six".