272129650378 has 4 divisors (see below), whose sum is σ = 408194475570. Its totient is φ = 136064825188.

The previous prime is 272129650343. The next prime is 272129650393. The reversal of 272129650378 is 873056921272.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 202313742849 + 69815907529 = 449793^2 + 264227^2 .

It is a super-2 number, since 2×272129650378² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68032412593 + ... + 68032412596.

Almost surely, 2^272129650378 is an apocalyptic number.

272129650378 is a deficient number, since it is larger than the sum of its proper divisors (136064825192).

272129650378 is a wasteful number, since it uses less digits than its factorization.

272129650378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136064825191.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 272129650378 in words is "two hundred seventy-two billion, one hundred twenty-nine million, six hundred fifty thousand, three hundred seventy-eight".