15854850001 has 2 divisors, whose sum is σ = 15854850002. Its totient is φ = 15854850000.

The previous prime is 15854849993. The next prime is 15854850007. The reversal of 15854850001 is 10005845851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13829760000 + 2025090001 = 117600^2 + 45001^2 .

It is a cyclic number.

It is not a de Polignac number, because 15854850001 - 2³ = 15854849993 is a prime.

It is not a weakly prime, because it can be changed into another prime (15854850007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7927425000 + 7927425001.

It is an arithmetic number, because the mean of its divisors is an integer number (7927425001).

Almost surely, 2^15854850001 is an apocalyptic number.

It is an amenable number.

15854850001 is a deficient number, since it is larger than the sum of its proper divisors (1).

15854850001 is an equidigital number, since it uses as much as digits as its factorization.

15854850001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32000, while the sum is 37.

The spelling of 15854850001 in words is "fifteen billion, eight hundred fifty-four million, eight hundred fifty thousand, one".