147778114470671 has 2 divisors, whose sum is σ = 147778114470672. Its totient is φ = 147778114470670.

The previous prime is 147778114470601. The next prime is 147778114470719. The reversal of 147778114470671 is 176074411877741.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147778114470671 is a prime.

It is a super-2 number, since 2×147778114470671² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 147778114470598 and 147778114470607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147778114470601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73889057235335 + 73889057235336.

It is an arithmetic number, because the mean of its divisors is an integer number (73889057235336).

Almost surely, 2^{147778114470671} is an apocalyptic number.

147778114470671 is a deficient number, since it is larger than the sum of its proper divisors (1).

147778114470671 is an equidigital number, since it uses as much as digits as its factorization.

147778114470671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51631104, while the sum is 65.

The spelling of 147778114470671 in words is "one hundred forty-seven trillion, seven hundred seventy-eight billion, one hundred fourteen million, four hundred seventy thousand, six hundred seventy-one".