137947782819 has 16 divisors (see below), whose sum is σ = 229315795200. Its totient is φ = 71661185760.

The previous prime is 137947782809. The next prime is 137947782859. The reversal of 137947782819 is 918287749731.

It is not a de Polignac number, because 137947782819 - 2²³ = 137939394211 is a prime.

It is a super-2 number, since 2×137947782819² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 137947782819.

It is not an unprimeable number, because it can be changed into a prime (137947782809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298588044 + ... + 298588505.

It is an arithmetic number, because the mean of its divisors is an integer number (14332237200).

Almost surely, 2^137947782819 is an apocalyptic number.

137947782819 is a deficient number, since it is larger than the sum of its proper divisors (91368012381).

137947782819 is a wasteful number, since it uses less digits than its factorization.

137947782819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597176570.

The product of its digits is 42674688, while the sum is 66.

The spelling of 137947782819 in words is "one hundred thirty-seven billion, nine hundred forty-seven million, seven hundred eighty-two thousand, eight hundred nineteen".