147779265238 has 16 divisors (see below), whose sum is σ = 243218429136. Its totient is φ = 66784111840.

The previous prime is 147779265229. The next prime is 147779265239. The reversal of 147779265238 is 832562977741.

It is a super-2 number, since 2×147779265238² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147779265239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19410181 + ... + 19417792.

It is an arithmetic number, because the mean of its divisors is an integer number (15201151821).

Almost surely, 2^147779265238 is an apocalyptic number.

147779265238 is a deficient number, since it is larger than the sum of its proper divisors (95439163898).

147779265238 is a wasteful number, since it uses less digits than its factorization.

147779265238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38828159.

The product of its digits is 35562240, while the sum is 61.

The spelling of 147779265238 in words is "one hundred forty-seven billion, seven hundred seventy-nine million, two hundred sixty-five thousand, two hundred thirty-eight".