15000007873 has 2 divisors, whose sum is σ = 15000007874. Its totient is φ = 15000007872.

The previous prime is 15000007861. The next prime is 15000007889. The reversal of 15000007873 is 37870000051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14784857649 + 215150224 = 121593^2 + 14668^2 .

It is a cyclic number.

It is not a de Polignac number, because 15000007873 - 2¹³ = 14999999681 is a prime.

It is a super-3 number, since 3×15000007873³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (15000007853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7500003936 + 7500003937.

It is an arithmetic number, because the mean of its divisors is an integer number (7500003937).

Almost surely, 2^15000007873 is an apocalyptic number.

It is an amenable number.

15000007873 is a deficient number, since it is larger than the sum of its proper divisors (1).

15000007873 is an equidigital number, since it uses as much as digits as its factorization.

15000007873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The spelling of 15000007873 in words is "fifteen billion, seven thousand, eight hundred seventy-three".