147077797421 has 4 divisors (see below), whose sum is σ = 147092400000. Its totient is φ = 147063194844.

The previous prime is 147077797403. The next prime is 147077797453. The reversal of 147077797421 is 124797770741.

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: 124797770741 = 7 ⋅17828252963.

It is a cyclic number.

It is not a de Polignac number, because 147077797421 - 2³⁰ = 146004055597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147070797421) 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 in 3 ways as a sum of consecutive naturals, for example, 7286171 + ... + 7306328.

It is an arithmetic number, because the mean of its divisors is an integer number (36773100000).

Almost surely, 2^147077797421 is an apocalyptic number.

It is an amenable number.

147077797421 is a deficient number, since it is larger than the sum of its proper divisors (14602579).

147077797421 is a wasteful number, since it uses less digits than its factorization.

147077797421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14602578.

The product of its (nonzero) digits is 4840416, while the sum is 56.

The spelling of 147077797421 in words is "one hundred forty-seven billion, seventy-seven million, seven hundred ninety-seven thousand, four hundred twenty-one".