72150015739 has 2 divisors, whose sum is σ = 72150015740. Its totient is φ = 72150015738.

The previous prime is 72150015737. The next prime is 72150015811. The reversal of 72150015739 is 93751005127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72150015739 - 2¹ = 72150015737 is a prime.

It is a super-2 number, since 2×72150015739² (a number of 23 digits) contains 22 as substring.

Together with 72150015737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (72150015737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36075007869 + 36075007870.

It is an arithmetic number, because the mean of its divisors is an integer number (36075007870).

Almost surely, 2^72150015739 is an apocalyptic number.

72150015739 is a deficient number, since it is larger than the sum of its proper divisors (1).

72150015739 is an equidigital number, since it uses as much as digits as its factorization.

72150015739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 40.

The spelling of 72150015739 in words is "seventy-two billion, one hundred fifty million, fifteen thousand, seven hundred thirty-nine".