147020828518251 has 24 divisors (see below), whose sum is σ = 216427350346064. Its totient is φ = 96150365245440.

The previous prime is 147020828518247. The next prime is 147020828518283. The reversal of 147020828518251 is 152815828020741.

147020828518251 is a `hidden beast` number, since 1 + 4 + 7 + 0 + 20 + 82 + 8 + 518 + 25 + 1 = 666.

147020828518251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 147020828518251 - 2² = 147020828518247 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147020828518951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505696246 + ... + 505986891.

Almost surely, 2^{147020828518251} is an apocalyptic number.

147020828518251 is a deficient number, since it is larger than the sum of its proper divisors (69406521827813).

147020828518251 is a wasteful number, since it uses less digits than its factorization.

147020828518251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011683451 (or 1011683448 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 54.

The spelling of 147020828518251 in words is "one hundred forty-seven trillion, twenty billion, eight hundred twenty-eight million, five hundred eighteen thousand, two hundred fifty-one".