147177778385 has 8 divisors (see below), whose sum is σ = 192669091776. Its totient is φ = 107038384240.

The previous prime is 147177778381. The next prime is 147177778417. The reversal of 147177778385 is 583877771741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 147177778385 - 2² = 147177778381 is a prime.

It is a super-2 number, since 2×147177778385² (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 (147177778381) 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 7 ways as a sum of consecutive naturals, for example, 1337979749 + ... + 1337979858.

It is an arithmetic number, because the mean of its divisors is an integer number (24083636472).

Almost surely, 2^147177778385 is an apocalyptic number.

It is an amenable number.

147177778385 is a deficient number, since it is larger than the sum of its proper divisors (45491313391).

147177778385 is a wasteful number, since it uses less digits than its factorization.

147177778385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675959623.

The product of its digits is 64538880, while the sum is 65.

The spelling of 147177778385 in words is "one hundred forty-seven billion, one hundred seventy-seven million, seven hundred seventy-eight thousand, three hundred eighty-five".