147421431538449 has 4 divisors (see below), whose sum is σ = 196561908717936. Its totient is φ = 98280954358964.

The previous prime is 147421431538441. The next prime is 147421431538483. The reversal of 147421431538449 is 944835134124741.

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 a cyclic number.

It is not a de Polignac number, because 147421431538449 - 2³ = 147421431538441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 147421431538392 and 147421431538401.

It is not an unprimeable number, because it can be changed into a prime (147421431538441) 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, 24570238589739 + ... + 24570238589744.

It is an arithmetic number, because the mean of its divisors is an integer number (49140477179484).

Almost surely, 2^{147421431538449} is an apocalyptic number.

It is an amenable number.

147421431538449 is a deficient number, since it is larger than the sum of its proper divisors (49140477179487).

147421431538449 is an equidigital number, since it uses as much as digits as its factorization.

147421431538449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49140477179486.

The product of its digits is 46448640, while the sum is 60.

The spelling of 147421431538449 in words is "one hundred forty-seven trillion, four hundred twenty-one billion, four hundred thirty-one million, five hundred thirty-eight thousand, four hundred forty-nine".