72102017007151 has 4 divisors (see below), whose sum is σ = 72389276039304. Its totient is φ = 71814757975000.

The previous prime is 72102017007089. The next prime is 72102017007197. The reversal of 72102017007151 is 15170071020127.

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 72102017007151 - 2¹³ = 72102016998959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72102017007451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143629515700 + ... + 143629516201.

It is an arithmetic number, because the mean of its divisors is an integer number (18097319009826).

Almost surely, 2^{72102017007151} is an apocalyptic number.

72102017007151 is a deficient number, since it is larger than the sum of its proper divisors (287259032153).

72102017007151 is a wasteful number, since it uses less digits than its factorization.

72102017007151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287259032152.

The product of its (nonzero) digits is 6860, while the sum is 34.

Adding to 72102017007151 its reverse (15170071020127), we get a palindrome (87272088027278).

The spelling of 72102017007151 in words is "seventy-two trillion, one hundred two billion, seventeen million, seven thousand, one hundred fifty-one".