147905958819 has 4 divisors (see below), whose sum is σ = 197207945096. Its totient is φ = 98603972544.

The previous prime is 147905958817. The next prime is 147905958821. The reversal of 147905958819 is 918859509741.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (147905958817) and next prime (147905958821).

It is not a de Polignac number, because 147905958819 - 2¹ = 147905958817 is a prime.

It is a super-2 number, since 2×147905958819² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147905958819.

It is not an unprimeable number, because it can be changed into a prime (147905958817) 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, 24650993134 + ... + 24650993139.

It is an arithmetic number, because the mean of its divisors is an integer number (49301986274).

Almost surely, 2^147905958819 is an apocalyptic number.

147905958819 is a deficient number, since it is larger than the sum of its proper divisors (49301986277).

147905958819 is an equidigital number, since it uses as much as digits as its factorization.

147905958819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49301986276.

The product of its (nonzero) digits is 32659200, while the sum is 66.

The spelling of 147905958819 in words is "one hundred forty-seven billion, nine hundred five million, nine hundred fifty-eight thousand, eight hundred nineteen".