147791562481 has 4 divisors (see below), whose sum is σ = 147800308464. Its totient is φ = 147782816500.

The previous prime is 147791562433. The next prime is 147791562547. The reversal of 147791562481 is 184265197741.

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, and also an emirpimes, since its reverse is a distinct semiprime: 184265197741 = 2957 ⋅62314913.

It is a cyclic number.

It is not a de Polignac number, because 147791562481 - 2⁷ = 147791562353 is a prime.

It is a super-2 number, since 2×147791562481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147791562431) 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, 4347595 + ... + 4381456.

It is an arithmetic number, because the mean of its divisors is an integer number (36950077116).

Almost surely, 2^147791562481 is an apocalyptic number.

It is an amenable number.

147791562481 is a deficient number, since it is larger than the sum of its proper divisors (8745983).

147791562481 is an equidigital number, since it uses as much as digits as its factorization.

147791562481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8745982.

The product of its digits is 3386880, while the sum is 55.

The spelling of 147791562481 in words is "one hundred forty-seven billion, seven hundred ninety-one million, five hundred sixty-two thousand, four hundred eighty-one".