72515152151 has 4 divisors (see below), whose sum is σ = 78093240792. Its totient is φ = 66937063512.

The previous prime is 72515152097. The next prime is 72515152153. The reversal of 72515152151 is 15125151527.

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 72515152151 - 2²⁶ = 72448043287 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 (72515152153) 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, 2789044301 + ... + 2789044326.

It is an arithmetic number, because the mean of its divisors is an integer number (19523310198).

Almost surely, 2^72515152151 is an apocalyptic number.

72515152151 is a deficient number, since it is larger than the sum of its proper divisors (5578088641).

72515152151 is a wasteful number, since it uses less digits than its factorization.

72515152151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578088640.

The product of its digits is 17500, while the sum is 35.

The spelling of 72515152151 in words is "seventy-two billion, five hundred fifteen million, one hundred fifty-two thousand, one hundred fifty-one".