288631772006 has 4 divisors (see below), whose sum is σ = 432947658012. Its totient is φ = 144315886002.

The previous prime is 288631772003. The next prime is 288631772029. The reversal of 288631772006 is 600277136882.

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

It is a super-2 number, since 2×288631772006² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288631772003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72157943000 + ... + 72157943003.

It is an arithmetic number, because the mean of its divisors is an integer number (108236914503).

Almost surely, 2^288631772006 is an apocalyptic number.

288631772006 is a deficient number, since it is larger than the sum of its proper divisors (144315886006).

288631772006 is a wasteful number, since it uses less digits than its factorization.

288631772006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144315886005.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 288631772006 in words is "two hundred eighty-eight billion, six hundred thirty-one million, seven hundred seventy-two thousand, six".