72881040151 has 4 divisors (see below), whose sum is σ = 73068395400. Its totient is φ = 72693684904.

The previous prime is 72881040137. The next prime is 72881040209. The reversal of 72881040151 is 15104018827.

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

It is a cyclic number.

It is not a de Polignac number, because 72881040151 - 2¹¹ = 72881038103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72881040151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72881040101) 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 3 ways as a sum of consecutive naturals, for example, 93677041 + ... + 93677818.

It is an arithmetic number, because the mean of its divisors is an integer number (18267098850).

Almost surely, 2^72881040151 is an apocalyptic number.

72881040151 is a deficient number, since it is larger than the sum of its proper divisors (187355249).

72881040151 is a wasteful number, since it uses less digits than its factorization.

72881040151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187355248.

The product of its (nonzero) digits is 17920, while the sum is 37.

Adding to 72881040151 its reverse (15104018827), we get a palindrome (87985058978).

The spelling of 72881040151 in words is "seventy-two billion, eight hundred eighty-one million, forty thousand, one hundred fifty-one".