900170051047 has 2 divisors, whose sum is σ = 900170051048. Its totient is φ = 900170051046.

The previous prime is 900170051009. The next prime is 900170051051. The reversal of 900170051047 is 740150071009.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 900170051047 - 2¹⁹ = 900169526759 is a prime.

It is a super-2 number, since 2×900170051047² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (900170061047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 450085025523 + 450085025524.

It is an arithmetic number, because the mean of its divisors is an integer number (450085025524).

Almost surely, 2^900170051047 is an apocalyptic number.

900170051047 is a deficient number, since it is larger than the sum of its proper divisors (1).

900170051047 is an equidigital number, since it uses as much as digits as its factorization.

900170051047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 34.

The spelling of 900170051047 in words is "nine hundred billion, one hundred seventy million, fifty-one thousand, forty-seven".