8447155051 has 2 divisors, whose sum is σ = 8447155052. Its totient is φ = 8447155050.

The previous prime is 8447154997. The next prime is 8447155097. The reversal of 8447155051 is 1505517448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8447155051 - 2¹³ = 8447146859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8447154995 and 8447155013.

It is not a weakly prime, because it can be changed into another prime (8447155151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4223577525 + 4223577526.

It is an arithmetic number, because the mean of its divisors is an integer number (4223577526).

Almost surely, 2^8447155051 is an apocalyptic number.

8447155051 is a deficient number, since it is larger than the sum of its proper divisors (1).

8447155051 is an equidigital number, since it uses as much as digits as its factorization.

8447155051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112000, while the sum is 40.

The square root of 8447155051 is about 91908.4057690046. The cubic root of 8447155051 is about 2036.5894450479.

The spelling of 8447155051 in words is "eight billion, four hundred forty-seven million, one hundred fifty-five thousand, fifty-one".